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Quick answer from a licensed plumber: For most homes that want a true built-in bidet toilet, our top pick is the TOTO NEOREST RS. It is one unit with the bidet, heated seat, dryer and auto flush built in. TOTO lists the lowest minimum supply pressure of any pick here that lists one (7.25 psi flowing), a manual flush for outages and a 12 in. rough-in. It needs a 120 V, 15 A GFCI outlet beside the toilet. It is not linked: third-party seller only, low stock, on 10/4/2026. Of the picks we link, the Kohler Leap K-28529 is integrated too and needs a dedicated GFCI circuit. For a tank toilet with a matched bidet seat, get the TOTO Aquia IV WASHLET+ S7A.
Our pick for most bathrooms: the TOTO NEOREST RS, with the bidet, seat and flush in one unit and the lowest listed minimum pressure here (not linked: third-party seller only, low stock, on 10/4/2026). The best pick we can link is the TOTO Aquia IV WASHLET+ S7A, a TOTO tank toilet sold with its matched bidet seat. Check the TOTO Aquia IV WASHLET+ S7A on Amazon
This page covers two kinds of toilet with built-in bidet: one-piece smart toilets where the wash wand is part of the unit, and matched toilet-and-seat sets sold as one model. All four picks need an outlet at the toilet. If you want to keep the toilet you have, this is the wrong page: a bidet toilet seat bolts onto most elongated toilets, and a bidet attachment needs no power at all. If you only need a good toilet, start with our best toilet picks.
Bidet Toilets Compared
| Model | Type | Flush (maker) | Supply pressure (maker) | Electrical (maker) | Cord | Power-outage flush |
|---|---|---|---|---|---|---|
| TOTO NEOREST RS (not linked) | One-piece, integrated | 1.0 / 0.8 gpf | Min 7.25 psi flowing; max 108.75 psi static | GFCI outlet, 120 V 15 A | 3.9 ft | Manual cords under a side cover |
| Kohler Leap K-28529 | One-piece, integrated | 1.0 / 1.28 gpf | Not listed on the spec sheet | Dedicated GFCI circuit, 120 V 15 A | 35 in. | Emergency flush, up to 100 |
| TOTO Aquia IV WASHLET+ S7A | Two-piece toilet + matched seat | 1.28 / 0.9 gpf | Min 8 psi flowing | GFCI outlet, 120 V 15 A | 4 ft (seat) | Tank push buttons |
| DeerValley DV-1S0371-V3 | One-piece, integrated, pump | 4.8 L or less (1.28 gpf on its page) | 0.1 to 0.75 MPa static | Grounded outlet, 13 A or more | About 3.6 ft | 10 AA batteries |
From the TOTO, Kohler and DeerValley documents listed below, read on October 4, 2026. All four picks are drawn at a 12 in. rough-in. The three linked listings were sold by Amazon.com and in stock that day. The TOTO NEOREST RS is not linked: third-party seller only, low stock, on 10/4/2026.
Integrated Toilet vs a Toilet Plus a Bidet Seat
Integrated: one unit
On an integrated toilet, the bidet is part of the toilet. TOTO’s NEOREST RS ships as a bowl unit and a top unit that TOTO sells as one model, and Kohler describes the Leap as a one-piece smart toilet “with integrated personal cleansing.” The flush is electric on these: TOTO’s is auto flush with a manual back-up, and Kohler lists a power flush with an emergency flush. You get one shape, no visible hoses and one set of controls. The trade-off is that the toilet, the bidet and the flush all depend on one power cord and one maker’s parts.
Matched set: toilet and seat in one box
TOTO’s WASHLET+ sets pair a TOTO toilet with a TOTO bidet seat under one model number. TOTO says the Aquia IV set has a concealed supply connection, and the Amazon listing says it hides the seat’s water line and power cord. The toilet is still a gravity tank toilet. The seat is its own product with its own warranty, so it can be replaced later without changing the toilet.
Your toilet plus a separate seat
A bidet seat on the toilet you already own is the same idea without buying a toilet. TOTO says its S7A seat is compatible with most elongated toilets, including other brands. Plumber’s note: a separate seat still needs a GFCI outlet and a tee on the toilet’s supply line. Our bidet attachment install guide covers the tee, the supply line and the four things to check first. Choose a whole bidet toilet when the old toilet is due for replacement anyway, or when the bowl shape will not take a seat well.
TOTO NEOREST RS Dual Flush Toilet with Integrated Bidet Seat (MS8341CUMFG)
One-piece skirted smart toilet with the bidet built in · 1.0 / 0.8 gpf dual flush · 12 in. rough-in · 1/2 in. NPT supply from the wall or floor · min 7.25 psi flowing, max 108.75 psi static · 120 V, 60 Hz, 1290 W · GFCI outlet, 120 V 15 A · cord 3.9 ft (1.2 m) · seat height 17-11/16 in. · auto flush with back-up manual flush · three-year limited residential warranty
This is the one-unit version of a bidet toilet: bowl, wash wand, heated seat, dryer and flush controls are a single TOTO product, with no seat bolted onto a separate tank. TOTO lists front, rear and soft rear spray with oscillating and pulsating settings, a heated seat, a warm air dryer and an automatic deodorizer. It also lists EWATER+, which TOTO says cleans the wand, bowl and under-seat after every use, and PREMIST, which mists the bowl before each use. The lid opens and closes on its own, and the flush is automatic, with a remote for manual control.
The reason it is the top pick is the plumbing side. TOTO calls the flush a “pressure-independent electric flushing system,” and its spec sheet sets the minimum supply at 7.25 psi flowing. That is the lowest minimum listed for any of the four picks; Kohler’s Leap sheet lists none. TOTO shows the 1/2 in. supply coming from the wall (suggested 6-7/8 in. above the floor and 4-1/2 in. off the centerline) or from the floor, and the drawing puts the GFCI outlet 12 in. above the floor. The spec sheet lists “back-up manual flush for power outages,” and the owner’s manual shows how it works: remove the left access cover and pull an orange cord, then a white one. TOTO also “highly” recommends a surge protector. Plumber’s note: at 95 lb, per TOTO, this is a two-person set.
- Bidet, seat and flush in one TOTO unit
- Lowest listed minimum pressure here: 7.25 psi flowing
- Wall or floor supply positions drawn on the spec sheet
- Manual flush for power outages, per TOTO
- Every function needs the outlet, including the auto flush
- Three-year limited residential warranty on the whole unit
- TOTO recommends a surge protector
- Heavy: 95 lb, per the spec sheet
Verdict: The pick when you want a true one-piece bidet toilet and your supply pressure or plumbing layout is less than ideal.
Not linked: TOTO NEOREST RS. Third-party seller only, low stock, on 10/4/2026.
Kohler Leap K-28529 One-Piece Smart Toilet with Bidet Built In
One-piece elongated, skirted smart toilet · 1.0 or 1.28 gpf dual flush, power flush · 12 in. rough-in · Comfort Height · requires a dedicated 120 V, 15 A, 60 Hz GFCI circuit · power cord 35 in. · emergency flush for up to 100 flushes in an outage · UV wand cleaning · three-year limited warranty (KOHLER Intelligent Toilet and C3 Cleansing Seat)
Kohler’s Leap is a slim one-piece smart toilet with what Kohler calls integrated personal cleansing. The spec sheet lists a stainless steel wand with adjustable spray shape, position, pressure and temperature, plus pulsate and oscillate. It also lists front and rear wash, a heated seat, warm-air drying, automatic deodorization and a hands-free opening cover. Kohler says a UV light cleans the wand. The toilet flushes automatically after each use, and the flush can also run from the remote or a backup button. Kohler lists the flush type as power, at 1.0 or 1.28 gpf, with EPA WaterSense among its codes and standards.
Pay attention to the electrical line. Kohler requires “one dedicated circuit,” protected with a Class A GFCI, at 120 V, 15 A and 60 Hz, and lists the power cord at 35 in. That short cord is the tightest of the four picks. Kohler’s drawing places the outlet 5 to 7 in. above the floor and 10 to 12 in. from the toilet’s centerline, with the supply 3 to 6 in. up and 10 to 12 in. out on the other side. Kohler also says to use the supply hoses that come with the toilet and not to reuse the old ones. For an outage, Kohler lists an emergency flush that supports up to 100 flushes with a touch button. The Leap sheet we read does not give a supply-pressure range, so check the installation guide if your pressure is low.
- Bidet built in, with a UV-cleaned stainless wand, per Kohler
- Emergency flush for up to 100 flushes in an outage
- Outlet and supply locations drawn with ranges
- Comfort Height seat, per Kohler
- Needs a dedicated GFCI circuit, per Kohler
- Shortest cord of the four: 35 in.
- No supply-pressure range on the spec sheet
- Do not reuse the old supply hoses, per Kohler
Verdict: The Kohler to buy if a new dedicated circuit is part of the job anyway and you want a slim one-piece bidet toilet.
TOTO Aquia IV WASHLET+ S7A Two-Piece Toilet with Auto Flush (MW4464736CEMFGNA)
Two-piece toilet sold with the WASHLET+ S7A bidet seat · 1.28 / 0.9 gpf dual flush · min 8 psi flowing · 12 in. rough-in (10 and 14 in. adapters listed as options) · concealed supply connection · 90° angle stop valve required · GFCI outlet 120 V 15 A, 12 in. from the floor · seat cord 4 ft, 3 prongs · auto flush · toilet one-year and S7A seat two-year residential limited warranties
This is the other way to get a toilet with the bidet built in: a TOTO tank toilet and a TOTO WASHLET+ seat sold together as one model. TOTO lists a “concealed supply connection” for the set, and the Amazon listing says it hides the seat’s water supply and power cord. The S7A seat lists warm-water front and rear spray with oscillating and pulsating settings, a heated seat, a warm air dryer, an air deodorizer, an auto open/close lid, EWATER+ and PREMIST. This “A” model includes auto flush. The toilet is TOTO’s dual flush Aquia IV at 1.28 or 0.9 gpf, and the spec sheet lists EPA WaterSense among its certifications.
The spec sheet sets a few rules for the rough. The minimum pressure is 8 psi flowing. The stop valve must be a 90° angle stop, and the suggested position is 4-3/4 in. above the floor and 5-7/8 in. off the flange centerline. The GFCI outlet goes 12 in. above the floor, within reach of the 4 ft seat cord. TOTO’s install manual adds that the angle stop’s outlet should face up, inward or down, and should stick out less than 3 in. from the wall. The seat is a separate TOTO product with its own two-year limited residential warranty, and TOTO says it fits other toilets too. Plumber’s note: this is a gravity tank toilet flushed by push buttons on the tank, so a power outage stops the seat and the auto flush but not the buttons.
- Tank toilet with push buttons for flushing without the seat
- Seat and toilet designed together, with hidden supply, per TOTO
- WaterSense dual flush, 1.28 / 0.9 gpf
- The seat can be replaced by itself later
- Needs a 90° angle stop in the right spot, per TOTO
- Two warranties with different terms
- Two-piece bowl and tank has more seams to clean
- Rough-ins other than 12 in. need adapters sold separately
Verdict: The pick if you want the bidet features but would rather keep an ordinary tank flush and a seat you can swap later.
DeerValley DV-1S0371-V3 Smart Toilet with Bidet Built In
One-piece smart toilet with the bidet built in · built-in water tank and pump · flush 4.8 L or less per the manual (1.28 gpf per DeerValley’s page) · 12 in. rough-in · supply 0.1 to 0.75 MPa static, per the manual · 120 V, 60 Hz, rated 1050 W · grounded outlet, 13 A or more · cord about 3.6 ft · battery flush in an outage (10 AA batteries) · warranty stated as one year (manual) and two years (DeerValley page, Amazon)
DeerValley’s DV-1S0371-V3 is a one-piece smart toilet with a heated seat, rear and front wash, a warm air dryer, deodorizing, an auto open/close lid and auto flush. DeerValley’s page also lists UV sterilization and an external water filter, and it says the toilet heats its own wash water. The page lists a built-in water tank, and the Amazon listing says a built-in pump helps keep the flow steady in low-pressure homes. DeerValley’s page also says the unit is “MaP 1000g” and lists 1.28 gpf, a 12 in. rough-in and a 17.13 in. seat height. It lists an angle valve among the included accessories.
Read the manual before you rely on the pump claim. Its technical table lists supply pressure as 0.1 to 0.75 MPa static, about 14.5 to 109 psi (our arithmetic). That is a higher floor than the TOTO pick. The manual asks for a grounded outlet rated at least 120 V, 60 Hz and 13 A, and lists the cord at about 3.6 ft. For an outage, the manual says to put 10 AA batteries in the toilet’s battery compartment and press the knob to flush, and DeerValley’s FAQ says the batteries are sold separately. The warranty wording conflicts: the manual’s warranty page says one year, while DeerValley’s page and the Amazon listing say two years. Plumber’s note: the manual’s grounding page describes a temporary adapter for two-slot outlets. Skip that. Have a grounded GFCI outlet installed instead.
- Bidet built in, with a built-in tank and pump, per DeerValley
- Battery flush in an outage, per the manual
- 1.28 gpf and 12 in. rough-in, per DeerValley
- Angle valve included, per DeerValley
- Manual lists a 0.1 MPa (about 14.5 psi) minimum static pressure
- Outage flush needs 10 AA batteries, sold separately
- Warranty is one year in the manual, two on the page
- Manual names a leakage protection plug with a reset switch but never says GFCI; use a GFCI outlet anyway
Verdict: The integrated pick with a built-in tank and pump, as long as you set it up with a GFCI outlet and keep batteries on hand for outages.
I send an occasional note when a new guide goes up — repairs worth doing yourself, and the parts that actually last. No spam, no course funnel; written by a licensed Georgia plumber.
Electrical: Plan the Outlet First
Every pick here plugs in, and every maker spells out the outlet. The cords are short, so the outlet has to be beside the toilet, not across the room.
What each maker requires
- TOTO NEOREST RS: “GFCI outlet of 120V, 15amps,” drawn 12 in. above the floor. The power rating is 120 V, 60 Hz, 1290 W, and the cord is listed at 3.9 ft (1.2 m).
- TOTO Aquia IV WASHLET+ S7A: the same GFCI outlet note, 12 in. from the floor, and a 4 ft, three-prong seat cord. The S7A sheet lists 1290 W power consumption and 1446 W maximum.
- Kohler Leap: “One dedicated circuit required, protected with Class A Ground-Fault Circuit-Interrupter (GFCI),” at 120 V, 15 A, 60 Hz. The cord is 35 in., and the outlet is drawn 5 to 7 in. above the floor.
- DeerValley DV-1S0371-V3: a grounded outlet rated at least 120 V, 60 Hz and 13 A. The rated power is 1050 W, with 1350 W maximum instantaneous power, and the cord is about 3.6 ft.
No splitters, loose sockets or extension cords
TOTO’s NEOREST manual warns against loose or faulty outlets and against plugging too many plugs into one outlet “for example using outlet splitters.” It also says to ask the installing contractor to add a ground if none is installed. DeerValley’s manual warns against a socket that is loose or damaged. TOTO recommends a surge protector for both TOTO picks. Plumber’s note: skip extension cords. TOTO and Kohler both call for GFCI protection, and Kohler asks for a whole dedicated circuit. Adding an outlet or circuit is electrician’s work, so plan it before the toilet arrives and ask your local building department what it requires. Our bidet install cost guide covers that part of the job.
Rough-In and Water Supply
Rough-in and floor
All four picks are drawn at a 12 in. rough-in, measured from the finished wall to the center of the drain. TOTO lists 10 in. and 14 in. Unifit adapters as optional parts for the Aquia IV set only. TOTO’s NEOREST sheet adds a baseboard warning: if the room has a baseboard, the center of the drain should be at least 12 in. from the baseboard. For back-to-back toilets on one drain, Kohler’s Leap sheet says to use a 45° double wye, not a double sanitary tee. TOTO’s Aquia IV sheet draws a double combination wye as yes and a double sanitary tee as no. Measure first with our toilet rough-in size guide.
Where the supply comes out
These toilets are fussier about the stop valve than a plain toilet. TOTO draws the NEOREST RS supply either from the wall, suggested 6-7/8 in. above the floor and 4-1/2 in. off center, or from the floor, 4-1/2 in. off center and 2-3/8 in. from the wall, with a 1/2 in. NPT connection. For the Aquia IV set, TOTO requires a 90° angle stop, suggested 4-3/4 in. above the floor and 5-7/8 in. off center. Its install manual adds that the angle stop’s outlet should face up, inward or down, and should stick out less than 3 in. (80 mm) from the wall; the spec sheet drawing gives 3-1/8 in. as the maximum. Kohler draws the Leap supply 3 to 6 in. above the floor and 10 to 12 in. from the centerline, and says to use the supply hoses that come with it, not the old ones. DeerValley says an angle valve is in the box. Plumber’s note: if your stop is in the wrong spot, move it while the wall is open; see supply stop valves by pipe type and toilet supply line sizes.
Water pressure
TOTO lists the NEOREST RS at 7.25 psi flowing minimum and 108.75 psi static maximum. Its install manual gives the minimum as 0.05 MPa at 10 L/min, and it says the toilet measures supply pressure and adjusts the flush volume. TOTO lists the Aquia IV set at 8 psi flowing minimum, and the S7A seat at 7.25 psi flowing to 108.75 psi static. DeerValley’s manual lists 0.1 to 0.75 MPa static, about 14.5 to 109 psi (our arithmetic). Kohler’s Leap sheet gives no range; its Eir sheet lists 80 psi static maximum and a 4 gpm minimum flow. TOTO’s Aquia manual notes that model codes allow a maximum of 80 psi. Plumber’s note: if a gauge reads over 80 psi, fix the pressure reducing valve before a smart toilet goes in. If pressure is low, start with how to fix low water pressure.
Flush volume and local code
All four picks flush at 1.28 gpf or less, per their makers. That matters because some states, Georgia and California among them, cap new toilets at 1.28 gpf. Our best toilet guide lists where a 1.6 gpf toilet is not allowed. Plumber’s note: several listings we checked for this page were 1.6 gpf full flush, so read the flush line on any bidet toilet before you order.
When the Power Goes Out
An integrated bidet toilet flushes with electricity, so check the outage plan before you buy. TOTO’s NEOREST RS manual says to remove the left access cover, pull the orange manual water supply cord to its stop, then pull and hold the white manual water storage cord to drain the bowl. Kohler lists an emergency flush on the Leap that supports up to 100 flushes with a touch button. DeerValley’s manual says to open the battery compartment with a Phillips screwdriver, load 10 AA batteries and press the knob to flush. It also says the batteries are not rechargeable. The TOTO Aquia IV WASHLET+ is a tank toilet with push buttons. Plumber’s note: in a house with frequent outages, the tank toilet or the Kohler is the easier one to live with.
Before You Buy
- Find the outlet. Measure from the toilet flange to the nearest outlet. If it is more than about 3 ft away or not GFCI protected, plan an electrician visit first. Kohler requires a dedicated circuit.
- Measure the rough-in. All four picks are 12 in. The TOTO Aquia IV set is the only one with listed 10 and 14 in. adapters.
- Check the stop valve. Note where it comes out of the wall or floor and compare it with the maker’s drawing. The Aquia IV set needs a 90° angle stop.
- Test your water pressure. Low pressure favors the NEOREST RS (7.25 psi flowing minimum). Over 80 psi calls for a pressure reducing valve.
- Decide on outage flushing. Cords, a touch button, batteries or a tank: pick the one you can live with.
Installing a Bidet Toilet
Pull the old toilet and prep
The removal and wax ring are the same as any toilet; our toilet replacement guide covers them. TOTO’s NEOREST manual says to flush any dirt and sand out of the supply pipe before you install, to check that the supply and drain are in the positions on its diagram, and to turn on power and water only after all installation work is done. DeerValley’s manual says to let the toilet warm up for 2 hours in a heated room before installing it if it has been in the cold.
Connect water, then power
Use the hoses that come with the toilet; Kohler says not to reuse the old ones, and DeerValley’s manual says to use a new inlet pipe. TOTO’s NEOREST manual says not to bend or twist the supply hose excessively, and not to remove the water supply filter with the valve open. The NEOREST manual also says the manual flush cord is for outages and should not be pulled during installation. Plug in only after the water side is checked for leaks.
When to call a pro
Plumber’s note: the toilet swap is a reasonable weekend job for a handy owner with a helper. The outlet or dedicated circuit is not; that goes to an electrician. Moving a stop valve, fixing a broken flange or changing the rough-in means cutting pipe, and a new circuit may need a permit where you live. DeerValley’s manual recommends professional installation, and TOTO’s NEOREST installation manual is written for installers.
FAQ
Does a toilet with a built-in bidet need a special outlet?
It needs a grounded 120 V outlet within reach of a short cord, and GFCI protection. TOTO’s spec sheets call for a GFCI outlet rated 120 V, 15 A. Kohler requires a dedicated 120 V, 15 A circuit protected by a Class A GFCI. DeerValley’s manual asks for a grounded outlet rated 13 A or more. The cords run from 35 in. (Kohler Leap) to about 4 ft (TOTO), so the outlet must sit beside the toilet. TOTO’s manual warns against outlet splitters, and DeerValley’s warns against a loose or damaged socket. Plumber’s note: do not run an extension cord; if there is no outlet near the toilet, an electrician adds one before the toilet goes in.
Will a smart toilet fit a 10-inch rough-in?
Not these as sold. All four picks are drawn at a 12 in. rough-in by their makers. TOTO lists 10 in. and 14 in. Unifit rough-in adapters as optional parts for the Aquia IV WASHLET+ set. Measure from the finished wall to the center of the closet bolts before you buy; our rough-in guide shows how. If the flange is off, see offset toilet flanges.
Will a bidet toilet flush during a power outage?
The four picks handle it differently. TOTO lists a back-up manual flush on the NEOREST RS, worked by pulling two cords under a side cover. Kohler lists an emergency flush on the Leap that supports up to 100 flushes with a touch button. DeerValley’s manual says to load 10 AA batteries into a compartment and press the knob. The TOTO Aquia IV WASHLET+ is a tank toilet with push buttons, so it flushes like any tank toilet; only the seat features stop.
Is a built-in bidet toilet better than a bidet seat?
It is neater, not always better. An integrated toilet puts the bidet, seat and flush in one unit with no visible hose, but the whole unit depends on power, and you replace it as one product. A bidet seat keeps your current toilet, and TOTO says its S7A seat fits most elongated toilets. If your toilet works and has an outlet nearby, a seat is less work; see our bidet toilet seat picks. For no outlet at all, look at non-electric bidet attachments.
What water pressure does a smart toilet need?
Check the number on the spec sheet before you buy. TOTO lists 7.25 psi flowing minimum and 108.75 psi static maximum for the NEOREST RS, and 8 psi flowing minimum for the Aquia IV WASHLET+ set. DeerValley’s manual lists 0.1 to 0.75 MPa static, about 14.5 to 109 psi (our arithmetic). Kohler’s Eir sheet lists 80 psi static maximum and a 4 gpm minimum flow; the Leap sheet gives no range. TOTO’s Aquia manual notes that model codes allow a maximum of 80 psi. A hose-bib pressure gauge tells you where your house sits.
Why Trust Plumbing Picks
Plumbing Picks is written by a licensed Georgia journeyman plumber. Every spec here comes from the maker documents linked below, or from the Amazon listings we link; nothing comes from hands-on testing. On October 4, 2026, the three linked listings were in stock and sold by Amazon.com. The TOTO NEOREST RS listing was sold by a third-party seller only, with low stock, so it is not linked. If you buy through a link we may earn a commission at no extra cost to you. Nobody pays to be included here. More on who writes this and how we pick.
Sources
- TOTO: NEOREST RS Dual Flush Toilet MS8341CUMFG product page, spec sheet SS-02218, NEOREST AS/RS installation manual H0B467, NEOREST RS instruction manual D07E11
- TOTO: Aquia IV WASHLET+ S7 two-piece toilet product page, spec sheet SS-02185 (MW4464736CEMFGN(A)), WASHLET S7A seat spec sheet SS-02228, Aquia IV installation manual 0GU179
- Kohler: Leap K-28529 one-piece elongated smart toilet specification sheet (9-25-2026)
- Kohler: Eir K-77795 smart toilet specification sheet (6-10-2024)
- DeerValley: DV-1S0371-V3 smart toilet product page, DV-1S0371-V3 installation and user manual (linked from that page)
- Amazon listings for the Kohler K-28529-0, TOTO MW4464736CEMFGNA#01 and DeerValley DV-1S0371-V3 (linked above) and the TOTO MS8341CUMFG#01 (not linked: third-party seller only, low stock, on 10/4/2026), plus the WOODBRIDGE B0960S and Kohler Eir listings we checked but did not link
Bottom Line
A bidet toilet is a plumbing job and an electrical job. The TOTO NEOREST RS is the one-piece pick for most homes, with the lowest listed minimum pressure and a manual outage flush; it is not linked on this page right now (see the note on its card). The Kohler Leap fits when a dedicated GFCI circuit is part of the plan. The TOTO Aquia IV WASHLET+ S7A keeps a tank flush and a seat you can replace. The DeerValley adds a built-in pump and battery outage flush. Put the GFCI outlet in first, check the rough-in and stop valve against the maker’s drawing, and read the flush line before you order.