



🚰 Pressure relief perfected — protect your system, protect your peace of mind!
The Merrill MFG PRVNL75 is a lead-free brass pressure relief valve designed to protect cold water systems from excessive pressure up to 75 PSI. Featuring a 3/4" male NPT inlet and 1/2" female FPT outlet, it ensures reliable, corrosion-resistant performance with stainless steel springs. Compact and lightweight, it’s ideal for submersible pumps and well tank systems, meeting federal low lead regulations for safe, eco-friendly plumbing.






| Manufacturer | Merrill Manufacturing Company |
| Part number | PRVNL75 |
| Item Weight | 181 g |
| Product Dimensions | 6.27 x 3.68 x 2.67 cm; 181 g |
| Item model number | PRVNL75 |
| Material | Brass,Lead,Lead Free Brass,Stainless Steel |
| Item Package Quantity | 1 |
| Maximum Pressure | 75 Pound per Square Inch |
| Specification met | NPT |
| Batteries Included? | No |
| Batteries Required? | No |
A**R
Is adjustable
When I first installed it it leaked. It says it is set at 75lbs but leaked at 55lbs. I took the cap aff and used a screw driver to adjust it to a higher pressure. Works great now!
S**T
Well made and does the job
This product saved me a headache
B**L
Leaking well tank
Fix leaking well tank. Works well!
J**Y
Good item
perfect replacement
D**.
Pressure relief valve
Good product. Problem it did not fit. Should have ordered 1/2"
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