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🛠️ Elevate Your Water Safety Game — Because Your System Deserves the Best!
The Merrill MFG 3/4" Lead-Free Brass Pressure Relief Valve is a high-quality, corrosion-resistant safety valve designed for cold water systems. Featuring a 3/4" NPT threaded connection and a maximum pressure rating of 100 PSI, it ensures reliable pressure relief to protect plumbing, well, and irrigation setups. Certified by IAMPO and NSF/ANSI 372, this valve combines durability with compliance, making it an essential upgrade for professional-grade water system safety.
| ASIN | B0BW4Z38VV |
| Best Sellers Rank | #90,201 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #64 in Relief Valves |
| Brand | Merrill |
| Brand Name | Merrill |
| Connector Type | Threaded |
| Customer Reviews | 4.4 out of 5 stars 41 Reviews |
| Exterior Finish | Stainless Steel |
| Inlet Connection Size | 0.75 inches |
| Inlet Connection Type | National Pipe Tapered |
| Item Dimensions | 2.47 x 1.45 x 1.05 inches |
| Item Type Name | No Pressure Relief Valve |
| Item dimensions L x W x H | 2.47 x 1.45 x 1.05 inches |
| Manufacturer | Merrill Manufacturing Company |
| Manufacturer Part Number | PRVNL757100-A |
| Material | Brass |
| Material Type | Brass |
| Maximum Operating Pressure | 100 psi |
| Model Number | PRVNL757100-A |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.75 inches |
| Outlet Connection Type | MNPT |
| Size | 0.75 Inch |
| Specification Met | IAMPO, NSF/ANSI 372, AB 1953 |
| Thread Size | 3/4 inch |
| Thread Type | NPT |
| UPC | 642367453541 |
| Unit Count | 1 Count |
| Valve Type | Pressure Relief Valve |
E**P
Good quality
Item worked as new original
A**T
So far, so good
Does what it should (I hope). Amazingly, my well pump system did not have a safety relief valve.
G**4
I was told by my plumber that these should be inspected yearly.
Well who knew these things should be inspected yearly and replaced after 10 years. They stop your pipes or water heater from going boom splash. This one is for cold water only and was fitted to our pump. In the event that our filters get blocked it lets the excess water pressure out preventing the above mentioned water disaster. We had to buy a different version with a test handle for our hot water heater.
G**S
Have no way to test it but I presume it works
When I replaced my 40+ year old well pressure tank I added this, which I believe is now required by code. I added an adapter so I can attach a standard garden hose to deal with any outflow. Hopefully this will never be needed but it's reassuring to know my crawl space won't flood if something goes wrong. (Note: for me, 3 stars is not a "bad" review. It just means the product does what it says. 4 stars is "better than expected", and the rare 5 stars is for "surprises and delights with how good it is". I wish more reviewers followed this instead of giving 5 stars to any product that simply works and isn't broken.)
Trustpilot
2 weeks ago
2 weeks ago