ProPress is better if you make joints for a living; SharkBite is better for a handful of repairs. SharkBite pushes on by hand with no special tool, so it wins under about a dozen joints; ProPress presses wet or dry in seven seconds or less, per Viega, but only pays off once you own a press tool and have the joint count to use it.
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Both of these exist for the same reason: nobody wants to hold a torch inside a wall cavity. SharkBite pushes on by hand. ProPress crimps in about five seconds with a tool that costs more than most people’s first car repair. They solve the same problem from opposite ends of the budget.
Need one back off? See how to remove a push-to-connect fitting.
The decision is almost entirely about how many joints you are going to make in your life — and there is a specific myth about SharkBite that is worth clearing up with the actual listing number.
The short answer
Doing this for a living: ProPress. Faster per joint, and it presses wet lines you could never solder.
SharkBite behind a wall is allowed — push-to-connect fittings are covered by ASSE 1061, the performance standard that approves them for underground and behind-the-wall use, certified by IAPMO, NSF and CSA under both the UPC and IPC. The trade’s caution is about install quality, not the fitting.
Neither is a compromise on the joint itself. Both seal on an O-ring, both are code-listed, both fail the same way when the tube is cut badly.
A few repairs: a SharkBite Max coupling plus SharkBite’s UR702A depth and deburr tool, which SharkBite says marks insertion depth for Max and first-generation fittings and deburrs the pipe. Pressing for a living: start with our press tool guide.
Check the SharkBite Max ½-inch coupling on Amazon →
Check the SharkBite UR702A depth and deburr tool on Amazon →
SharkBite — push-to-connect
Inside the brass body: a stainless steel grab ring with teeth that bite the tube and stop it pulling out, and an EPDM O-ring that does the sealing. You cut the tube, deburr it, mark the insertion depth, and push until it stops. That is the whole install.
The underrated advantage: one fitting works on copper, PEX, CPVC and PE-RT. Transitioning between materials — the exact situation that makes repairs miserable — needs no special adapter. For PEX there is no sleeve to add: SharkBite Max fittings — including the coupling linked below — no longer require a PEX tube liner at all, and on first-generation SharkBite the liner is built into the fitting; SharkBite says it is not required for copper or CPVC and does not have to be removed. (Max still wants a liner on HDPE SDR-9, and SharkBite says the pipe manufacturer supplies that.)
They also come apart. A disconnect clip, tongs or the pro disconnect tool releases the grab ring, and the fitting can be reused — within the limit SharkBite set, which is spelled out in the FAQ below. A press joint cannot do that; it has to be cut out.
ProPress — press-connect
A fitting with an O-ring already in the socket. The tube goes in, a powered jaw closes around it, and roughly four to seven seconds later the fitting is permanently deformed onto the pipe. Governed by ASME B16.51, and it works on Type K, L or M copper without changing anything.
The thing press does that soldering cannot: it presses a line that still has water weeping through it. Viega rates ProPress for connections made “wet or dry in seven seconds or less”. You cannot solder a wet joint at all, and that is why press displaced the torch on service work. It is not what separates press from push-fit, though — SharkBite says its fittings “can be installed on wet lines and pressure tested immediately”, so on a weeping line the two are a tie, exactly as the table below says.
The comparison that actually decides it
| SharkBite (push-fit) | ProPress (press) | |
|---|---|---|
| Tool needed | Cutter and deburr tool | Press tool — a serious purchase |
| Time per joint | Seconds, but slower prep | 4–7 seconds under the jaw |
| Works on | Copper, PEX, CPVC, PE-RT | Copper and stainless |
| Reversible | Yes — disconnect clip | No — cut it out |
| Wet line | Yes | Yes |
| Concealed use | Approved (ASSE 1061) | Routine |
| Break-even | A handful of joints | Volume work |
The economics, plainly
SharkBite needs no press tool: a cutter and a deburr tool are enough to start. ProPress inverts that: you cannot make a single joint until you have bought the tool.
So the crossover is not really about fittings at all — it is about labor time. A pro pressing dozens of joints a day recovers the tool in saved hours, not in fitting savings. A homeowner making eight joints will never recover it, and should not try. Our press tool guide lays out what that purchase actually costs, and press vs soldering works through the same math against a torch.
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I send the trade an occasional note when I settle a question like this with the manufacturer’s own paperwork.
The behind-the-wall question, settled properly
This is where most advice goes vague, so here is the specific position.
The code answer: push-to-connect fittings are governed by ASSE 1061, the performance standard for push-fit fittings, which approves them for underground and behind-the-wall applications. SharkBite states its fittings meet the Uniform Plumbing Code and International Plumbing Code and are certified by IAPMO, NSF and CSA. So “you can’t hide a SharkBite” is, as a code statement, simply wrong.
The trade answer, and why it is not a contradiction: plenty of plumbers still will not conceal one, and their reasoning is sound. A push-fit joint’s integrity depends entirely on things you cannot see afterward — whether the tube was cut square, whether it was deburred, whether it was pushed fully to the depth mark, whether the pipe was scored. A press joint is verified by the tool; a soldered joint is verified by the solder line. A push-fit joint is verified by the installer having done it right.
What I would actually tell you: the listing is real and you are allowed to do it. If you conceal one, mark the depth on the tube before inserting so you can see it went all the way, and pressure-test before the drywall goes up, which the manufacturer recommends anyway. Where you have the choice, keeping push-fit joints accessible costs nothing and removes the only real variable.
What fails, on both
The failure mode is nearly identical, which surprises people:
- A bad cut. Out of square, or burred, and the O-ring gets nicked on the way in. SharkBite lists an uneven cut and an incomplete deburr among its common causes of fitting failure. Use a proper cutter, deburr every time.
- Not fully inserted. Push-fit needs the depth mark; press needs the tube seated to the shoulder before the jaw closes.
- A scored or out-of-round pipe. An old tube crushed by a pipe wrench will not seal on either.
- The forgotten joint. Press systems build in leak-before-press detection so an unpressed fitting shows itself under test. Push-fit has no equivalent — which is one more argument for pressure-testing before you close anything up.
SharkBite vs ProPress: which should you buy?
Buy SharkBite if you are making a handful of joints, mixing copper with PEX or CPVC, or fixing something tonight. Buy ProPress if you press for a living: four to seven seconds a joint, and a joint the tool verifies. Both are code-listed and both go on a wet line.
A handful of joints, mixed materials: SharkBite. The copper-to-PEX transition alone justifies it.
A whole-house repipe in copper: ProPress, or hire someone who owns the tool.
Service and repair for a living: ProPress. Volume and labor time are what justify the tool.
Concealed joints: either is listed — but press is verified by the tool, and that is worth something behind drywall.
If you are weighing push-fit more broadly, see our push-to-connect fittings guide and SharkBite vs soldered copper. For the press side, start with the best copper press fittings.
If the joint in question is a shut-off rather than a run of pipe, the comparison shifts — see compression vs push-to-connect valves for which stop to put under a sink or toilet.
If press is the direction, the tool is the next decision — see RIDGID vs Milwaukee press tools.
The parts, if you want them
Heads up: the product links below are Amazon affiliate links — you pay no more, and as an Amazon Associate we earn from qualifying purchases.
- SharkBite Max 1/2″ push-to-connect coupling (UR008A) — the exact fitting this article is about, and the generation that needs no PEX tube liner; keep a couple in the truck or junk drawer for emergency repairs.
- Viega ProPress 78047 1/2-inch copper couplings with stop (5-pack) (not linked: third-party seller only on 10/3/2026) — the press side of the comparison; only worth it if you have access to a press tool.
- SharkBite UR702A depth and deburr tool — SharkBite lists it for ½, ¾ and 1-inch pipe; it marks insertion depth and deburrs the outside of copper pipe.
- RIDGID RP 251 press tool kit (78148) — RIDGID lists it with ProPress jaws from ½ to 1¼ inch, and Viega’s tool matrix lists the RP 251’s compact jaws for ProPress across that range.
Full breakdowns: our push-to-connect fittings guide, copper press fittings guide, and press tool guide.
Frequently asked questions
Can SharkBite fittings be used behind a wall?
Yes. Push-to-connect fittings are covered by ASSE 1061, the performance standard that approves them for underground and behind-the-wall applications, and SharkBite states its fittings meet the UPC and IPC with IAPMO, NSF and CSA certification. Confirm your local code, mark the insertion depth before pushing, and pressure-test the system before closing the wall.
Is ProPress better than SharkBite?
For volume work, yes — it is faster per joint and the joint is verified by the tool. For a handful of joints it is not, because you have to buy a press tool first and you will never recover that on a small job. Both are code-listed and both make a permanent connection.
Which is cheaper, SharkBite or ProPress?
It depends entirely on joint count. SharkBite needs no press tool. With ProPress nothing can be installed until a press tool is bought. Below roughly a dozen joints that tool purchase decides it for SharkBite; at repipe volume press wins on labor time.
Can you take a SharkBite fitting off and reuse it?
Yes, using the disconnect clip or tongs that release the grab ring. A press joint cannot do that — it has to be cut out. SharkBite’s own limit is narrower than most advice you will read: fittings “can be reused for testing purposes but any fitting used repeatedly for testing should not be used in a permanent installation.” Treat a removal as a repair or a test, not a habit.
Do SharkBite and ProPress work on wet lines?
Both can be installed on a line that is still weeping, which is the main reason each displaced soldering for repair work. You cannot solder a wet joint at all. Shut off and drain what you reasonably can, but neither system requires a bone-dry pipe.
What actually makes a push-fit or press joint leak?
Almost always the tube, not the fitting: a cut that is out of square, a burr that nicks the O-ring on insertion, a pipe not pushed fully to the depth mark, or an old tube that has been crushed out of round. Cut square, deburr every time, seat fully, and pressure-test before sealing anything up.
SharkBite vs ProPress vs solder: which should you use?
Use solder where the pipe can be drained dry and you are comfortable with a soldering torch; it is the method both of the others were built to avoid. Use ProPress for volume work: Viega says its press joints can be made wet or dry in seven seconds or less on copper from 1/2 inch to 4 inch. Use SharkBite for a few joints with no torch and no press tool. If one repair mixes them, SharkBite recommends soldering any joints before its fitting goes on, because torch heat carried along the pipe can damage the O-ring.
Do copper press fittings or SharkBite fittings need special tools?
Press fittings do: nothing seals until a press tool with the right jaws closes the fitting. SharkBite says no specialized tools are needed to connect its fittings, though it recommends its Deburr & Gauge Tool, and the pipe must be cut square, deburred and free of debris. Taking one off does need a tool: SharkBite says a Disconnect Clip or Disconnect Tongs are required.
Sources
- SharkBite — Can SharkBite Be Used Behind Walls? (codes, ASSE 1061, certifications)
- ASME B16.51 — Copper and Copper Alloy Press-Connect Pressure Fittings
- Viega — ProPress System (wet or dry press connections, sizes)
- SharkBite — Push-to-Connect Fittings FAQs (tools, removal, soldering nearby)
For the plumbers reading this
Most of this site is written for homeowners — this page clearly isn’t. If you’re in the trade and want the occasional straight-shooting note when I publish something like this (fittings comparisons, tool buying guides, code changes), drop your email. No spam, no course funnel, written by a licensed GA journeyman.
Related: one of these comes apart and one does not — see how to remove a press fitting.
Related: both handle damp pipe, and neither likes running water — see can you press a wet line.