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Quick answer from a licensed plumber: For a full service-call kit, the Klein 55485: 48 pockets, a removable 11-pocket caddy and a hard molded bottom, per Klein. If you carry a laptop, the DeWalt DWST560102, with a laptop compartment, an IP54 water-resistant compartment and a waterproof base. For long floors, the DeWalt backpack on wheels. For small repairs, the 21-pocket Klein 55482, which opens fully as a workstation and is 7.2 pounds against 13.2 for the 55485, per Klein.
Our pick for most plumbers: the Klein Tools 55485 Tradesman Pro backpack. Check the Klein 55485 on Amazon
A plumber’s tool backpack carries the hand tools you take to every call, so you can climb stairs, open doors and crawl under a house with both hands free. This page compares four, two from Klein and two from DeWalt, all sold by Amazon.com when we checked. Every pocket count, size and weight comes from the makers’ own spec tables, and we say so when a maker leaves something out.
Tool Backpacks Compared
| Backpack | Pockets (maker) | Base (maker) | Laptop compartment | Size (maker) | Empty weight (maker) |
|---|---|---|---|---|---|
| Klein 55485 | 48 (35 in, 13 out) | Hard molded polypropylene | Not listed | 19.5 H x 13.5 W x 11 L in. | 13.2 lb |
| DeWalt DWST560102 | 43 (23 inside) | Waterproof base | Yes | 19.0 L x 6.5 W x 9.8 H in. | 6.55 lb |
| DeWalt DWST560101 | 46 (23 inside) | Not listed; wheels | Yes | 13.8 L x 9.5 W x 13.8 H in. | 8.84 lb |
| Klein 55482 | 21 (18 in, 3 out) | Not listed | Not listed | 19.25 H x 9 W x 14.5 L in. | 7.2 lb |
Figures from Klein’s 55485 and 55482 spec tables and DeWalt’s DWST560102 and DWST560101 product pages and spec lists. DeWalt counts total pockets in its features and inside pockets in its spec list; it lists 23 inside pockets for both packs and does not give an outside count. Each linked backpack was sold by Amazon.com and in stock on October 5, 2026.
What a Plumber Carries in a Backpack
The backpack is for the hand tools and small parts that go to every fixture. A typical service-call load looks like this:
- Wrenches and pliers: tongue-and-groove pliers in two sizes, an adjustable wrench, a basin wrench and a small pipe wrench.
- Cutters: a mini tubing cutter, a PEX cutter, a hacksaw or a mini hacksaw, and a deburring tool.
- Drivers and small tools: a multi-bit screwdriver, a utility knife, a flashlight or headlamp, a tape measure and a putty knife.
- Consumables: PTFE tape, pipe dope, plumber’s putty, a few compression ferrules and push-fit fittings, and rags.
Plumber’s note: big tools stay in the van until you need them. A press tool, a drain machine or a torch kit has its own case, and a loaded backpack plus a press tool case is already a full trip from the truck. Our professional plumbing tools guide covers which of those to buy and which to rent, and channel locks vs pipe wrench covers the two tools that go in every bag.
Backpack, Rolling Backpack or Tote?
- Backpack: hands free on stairs, ladders and crawl-space entries. The pick for residential service work.
- Rolling backpack: wheels for long flat floors, straps for when you have to carry it. It weighs more empty; DeWalt’s rolling version is 8.84 pounds against 6.55 for its standard PRO backpack, per DeWalt.
- Open tote: fastest to grab from at one fixture, but you carry it in one hand.
Why the Base Matters for Plumbers
A plumber’s bag sits on wet floors: under a leaking trap, beside a toilet you just pulled, in a basement with a puddle. A molded or waterproof base keeps water out of the bottom pockets. Klein lists a hard molded polypropylene bottom on the 55485, and DeWalt lists a waterproof base on the DWST560102. The other two list water-resistant fabric or compartments but no waterproof base, so set them on a towel or a dry spot.
Klein Tools 55485 Tradesman Pro Backpack, 48 Pockets
48 pockets (35 inside, 13 outside) · removable 11-pocket tool caddy · 1680d polyester body · hard molded polypropylene bottom · cable-reinforced handle · lockable zipper pulls (lock not included) · 19.5 in. high, 13.5 in. wide, 11 in. long · 13.2 lb (Klein spec table)
This is the backpack I would point a plumber to who wants the whole service-call kit on their back. Klein lists 48 pockets, 35 inside and 13 outside, and a removable 11-pocket tool caddy with carrying handles and a D-ring for hanging. The caddy is the useful part: you can pull it out and carry only the hand tools you need to the sink or the toilet, and leave the rest of the pack by the door.
Klein builds it from water-resistant 1680d ballistic weave with a hard molded polypropylene bottom, which its description calls a fully-molded waterproof bottom. That base is what you want when the bag sits on a wet floor under a leaking trap. Klein calls the adjustable front pouch a perfect spot for a drill, and there is a mid-sized front pocket for a tablet in a case and a molded front pocket for a phone or safety glasses. The handle is reinforced with aircraft cable, and a metal hook lets you hang the bag. Klein’s spec table lists it at 13.2 pounds.
- 48 pockets, per Klein’s spec table
- Removable 11-pocket caddy for the tools you need at the fixture
- Molded polypropylene bottom
- Front pouch Klein calls a perfect spot for a drill
- Heaviest pack here by the makers’ figures, 13.2 lb empty
- Lock for the zipper pulls not included
- No laptop compartment listed
Verdict: The pick for plumbers who carry a full hand-tool kit to every call and want a caddy they can pull out.
DeWalt DWST560102 18 in. PRO Backpack
43 pockets (23 inside, per spec list) · IP54 water-resistant compartment · waterproof base · 1680 denier fabric and tarpaulin · separate laptop compartment · drill and battery compartment · fold-down main pocket · 19.0 in. long, 6.5 in. wide, 9.8 in. high, 6.55 lb, 55.12 lb weight capacity (DeWalt spec list) · limited lifetime warranty
If you carry a laptop or tablet for invoices, camera footage or manuals, this DeWalt has a separate laptop compartment, and DeWalt lists an IP54 water-resistant compartment and a waterproof base. It is built from 1680 denier fabric with a dirt-repellent tarpaulin. DeWalt counts 43 pockets in all, with a separate compartment for a drill and batteries, a bottle pocket and a section for long tools.
The main pocket folds down so you can see and reach your tools on the job, and the inside is hi-vis yellow. DeWalt says the U-shaped zipper pull works with gloves on, and the back strap can hang on a telescopic handle, per DeWalt. Its spec list gives 6.55 pounds empty and a weight capacity of 55.12 pounds, and DeWalt backs it with a limited lifetime warranty.
- Separate laptop compartment
- IP54 water-resistant compartment and waterproof base, per DeWalt
- Drill and battery compartment
- Limited lifetime warranty
- Fewer inside pockets than the Klein 55485 (23 vs 35, per the makers)
- DeWalt calls it the 18 in. backpack but lists it as 9.8 in. high; check the size
- No removable caddy
Verdict: The pick for plumbers who carry a laptop or tablet with their tools.
DeWalt DWST560101 PRO Backpack on Wheels
46 pockets (23 inside, per spec list) · 2 wheels and telescopic handle · shoulder straps store in a pocket · IP54 water-resistant compartment · 1680 denier fabric and tarpaulin · laptop compartment · drill and battery compartments · 13.8 in. long, 9.5 in. wide, 13.8 in. high, 8.84 lb, 55.12 lb weight capacity (DeWalt spec list) · limited lifetime warranty
For long walks from the truck, across a commercial building or down a hallway of apartments, a backpack on wheels takes the load off your shoulders. DeWalt’s version has two wheels and a telescopic handle, and the shoulder straps tuck into a pocket when you roll it. DeWalt lists 46 pockets, with dedicated compartments for a drill and batteries, a laptop compartment and an IP54 water-resistant compartment.
The trade-off is weight. DeWalt’s spec list gives 8.84 pounds empty, against 6.55 pounds for its non-rolling PRO backpack, a difference of about 2.3 pounds (our arithmetic). Wheels help on floors and hurt on stairs and in crawl spaces, where you will carry it anyway. DeWalt does not list a waterproof base for this model, only the water-resistant compartment.
- Wheels and telescopic handle
- 46 pockets, per DeWalt
- Straps stow away when you roll it
- Laptop and drill compartments
- Heavier than the non-rolling DeWalt (8.84 vs 6.55 lb, per DeWalt)
- No waterproof base listed
- Wheels do not help on stairs or in crawl spaces
Verdict: The pick for plumbers who walk long floors with a full load, not for crawl-space work.
Klein Tools 55482 Tradesman Pro Tool Station Backpack, 21 Pockets
21 pockets (18 inside, 3 outside) · front opens halfway or fully as a workstation · water-resistant 1680d polyester · elastic loop for a work light · 745 cu. in. · 19.25 in. high, 9 in. wide, 14.5 in. long · 7.2 lb (Klein spec table)
Not every call needs 48 pockets. This smaller Klein has 21, and its front unzips halfway for quick access or folds fully open so the pack becomes a workstation on the floor. Klein lists a capacity of 745 cubic inches and a weight of 7.2 pounds, against 13.2 pounds for the 55485.
It is made of water-resistant 1680d ballistic weave, with an orange interior and an elastic loop that holds a work light so you can see into the pack in a dark crawl space or under a sink. Outside there is a front zipper pocket, a side pouch for a water bottle, a tape measure clip and a tape thong. Klein’s spec table lists a 1680d polyester body and does not list a molded bottom, so keep it off standing water.
- Opens fully into a workstation
- Lighter than the 55485 by Klein’s figures
- Work-light loop for dark spaces
- Tape measure clip and bottle pouch
- 21 pockets: not a full service-call kit
- No molded bottom listed
- Heavier than the DeWalt DWST560102 by the makers’ figures (7.2 vs 6.55 lb)
- No laptop compartment listed
Verdict: The pick for a second pack for small repairs and quick calls, when you want the bag fully open beside the work.
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What About Veto Pro Pac and Milwaukee?
Veto Pro Pac and Milwaukee also make tool backpacks. The Amazon listings we found for both were from third-party sellers, so we do not link them. If you want one, buy it from a dealer you trust and check the maker’s own pocket count and size.
Before You Buy
- Lay out your kit first. Count the tools you carry to every call, then pick a pocket count with room for fittings.
- Pick a waterproof base if your bag sits on wet floors. Of these four, the Klein 55485 and the DeWalt DWST560102 list one.
- Weigh it loaded. The empty weights here run from 6.55 to 13.2 pounds, per the makers, before a single tool goes in.
- Check the size against your van shelf. Sizes are as each maker lists them. DeWalt names the DWST560102 an 18 in. backpack, but its spec list gives 9.8 in. high and 19.0 in. long, so confirm the size before you plan a shelf around it.
- Laptop or tablet? Only the two DeWalt packs list a laptop compartment.
FAQ
Is a backpack better than a tool bag for plumbing?
For service work, usually. A backpack leaves both hands free on stairs, ladders and crawl-space entries, and it keeps tools organized in pockets instead of piled in a tote. An open tote is faster for a single fixture where you set the bag down next to the work.
How many pockets does a plumber’s tool backpack need?
Enough for the hand tools you carry to every call, with room for fittings. By the makers’ counts, the Klein 55485 has 48 pockets, the DeWalt DWST560101 46, the DeWalt DWST560102 43 and the Klein 55482 21.
Are these tool backpacks waterproof?
Partly. DeWalt lists an IP54 water-resistant compartment and a waterproof base on the DWST560102. Klein lists water-resistant fabric and a hard molded polypropylene bottom on the 55485. The Klein 55482 and DeWalt DWST560101 list water-resistant fabric or compartments but no waterproof base. No maker here says its pack can sit in standing water.
Can I carry a drill in a tool backpack?
Yes. DeWalt lists a separate compartment for a drill and batteries on both of its PRO backpacks, and Klein says the adjustable front pouch on the 55485 is a perfect spot for a drill.
Is a rolling tool backpack worth it?
If you walk long, flat floors with a full load, yes. DeWalt’s PRO backpack on wheels adds two wheels and a telescopic handle, but its spec list gives 8.84 pounds empty against 6.55 pounds for the non-rolling PRO backpack, and the wheels do not help on stairs or in crawl spaces.
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 5, 2026, every linked listing was in stock and sold by Amazon.com. 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
- Klein Tools: 55485 Tradesman Pro backpack, 48 pockets (features and specifications)
- Klein Tools: 55482 Tradesman Pro Tool Station backpack, 21 pockets (features and specifications)
- DeWalt: DWST560102 18 in. PRO backpack (product page and specifications)
- DeWalt: DWST560101 PRO backpack on wheels (product page and specifications)
- Amazon listings for each linked backpack (linked above)
Bottom Line
Buy the Klein 55485 if you carry a full hand-tool kit to every call and want a caddy you can pull out, or the DeWalt DWST560102 if a laptop goes with you. Pick a pack with a waterproof base if your bag sits on wet floors, and weigh it loaded before you commit.