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๐ฐ Stop backflow, start peace of mind!
The QWORK 2Pcs Brass One-way Check Valve features durable brass construction and a 1/2" female-to-male threaded design, providing reliable prevention of backflow in water and gas pipelines. Suitable for vertical or horizontal installation, it ensures efficient, unidirectional flow in various plumbing applications such as water heaters and toilets.
| Brand | QWORK |
| Color | Female to Male |
| Connector Type | Threaded |
| Exterior Finish | Brass |
| Item Weight | 0.08 kg |
| Material | Brass |
| Material Type | Brass |
| Size | 1/2 inch - 2 pcs |
| Thread Size | 0.5 inch |
| Thread Type | NPT |
B**R
Works well stopping the backflow.
It works perfectly. Cold water was mixing into the hot at one of my sinks. This isolated them and my problem is gone. If you need a backflow valve, this one works!
D**L
1 inch pex to 3/4 copper adapter
Arrived timely good quality
N**R
Not good for RV water system.
I installed this inline in my RV water system. It immediately reduced water flow and pressure. I don't think the shower would be at all effective. After 2 weeks it clogged up. My freshwater tank was cleaned in early spring, so there is probably some growth over the summer, but the water smells and tastes fine and has no slippery feel. I installed the second one while I search for a better solution. I put fresh water in the tank before installing the 2nd one. It stopped flowing today. I took it apart and found they are not clogging up, but getting stuck closed. THEY ARE NOT SUITABLE FOR RV WATER SYSTEMS! Also note that the threads are not NPT. They will fit NPT, but you will need to use thread tape.
H**B
Check valves that work!!!
They work perfect Add some loctite 567 to the threads and you're good to go
C**E
As advertised
Fit well at all connections, no leaks. Seems to control flow well.
R**E
Not quality made.
M.I.P. threads cut wrong on both units. Had to send back.
A**R
works as intended
no surprises with incorrect threads and works for what I have intended for it in a nice compact package(using it in a DIY vapor blaster setup)
J**E
Good item
Good item
J**N
Works as described.
Works as described. Easy to install. Used these to fix a shower cartridge that was leaking hot water through to the cold water system. I didn't want to replace the whole fixture, so I installed these in the supply lines and it fixed the problem.
M**.
worked as described
Used these to fix a shower cartridge that was leaking cold water through to the hot water system. The cartridge was unusual and I didn't want to replace the whole fixture, so I installed these in the supply lines and it fixed the problem.
D**E
solved my water problem
had a problem with water reversing in piped waterline. These one way valves fixed it immediately
J**.
very little volume of water, not enough to support rv water system,
very little volume of water, not enough to support rv water system,
C**X
Did the job
Used it to fix my RV water pump it stopped filling my my fresh water
Trustpilot
3 weeks ago
1 week ago