






💧 Stop the Bang, Save Your Pipes in Style!
The EFIELD MH-131 is a 2-pack of 1/2-inch MIP threaded stainless steel water hammer arrestors designed for potable water plumbing. Certified lead-free and NSF approved, these durable devices withstand up to 250°F and 250 PSIG, offering versatile installation and long-lasting protection against water hammer damage.




| Size | SS Pack of 2 |
| Material | Stainless Steel |
| Brand | EFIELD |
| Color | Stainless Steel |
| Item dimensions L x W x H | 4 x 2 x 1 inches |
| Connector Type | MIP |
| Thread Size | 0.5 inch |
| Exterior Finish | Brass |
| Thread Type | MIP |
| Number of Pieces | 2 |
| Global Trade Identification Number | 00810110602625 |
| Manufacturer | Efield |
| Part Number | 131 |
| Item Weight | 0.634 ounces |
| Product Dimensions | 4 x 2 x 1 inches |
| Country of Origin | China |
| Item model number | 131 |
| Style | MIP |
| Item Package Quantity | 1 |
| Included Components | body |
| Batteries Included? | No |
| Batteries Required? | No |
E**G
Hammer arrestor
Worked great with brass t combination. No more washing machine banging
F**P
Thumping is gone
Pipe thump is gone , easy to install and and change out when needed , have had no issues with these and they seem to last longer then some other brands
J**N
Good
Still had a little bump to pipes
T**.
they looked like a quality product.
I purchased them for a project I wanted to work on but a injury caused me to cancel and return all the stuff I purchased to stores and these to amazon. Never got to use them.
T**H
All Good
Exactly as ordered. Good online purchase experience.
A**R
Home repair
Fit right and works well
I**N
These work great.
Put these on a new line to a sink and it has noticeably impacted the dishwasher and clothes washing machine. The washing machine is on a different run 40ft or more away. So these definitely work.
D**D
Just ok
I installed these last week. It did help some but it did not eliminate all the air hammer.
Trustpilot
3 weeks ago
1 week ago