

🛡️ Protect your home’s heartbeat with HYDRO MASTER – safety that’s built to last!
The HYDRO MASTER Safety Relief Valve features a universal 3/4" NPT threaded inlet, a durable brass body paired with a stainless steel spring for corrosion resistance, and a precise 30 PSI pressure rating. Designed for quick installation and reliable protection, it’s CSA certified and trusted by professionals to safeguard residential hot water systems from excessive pressure.







| ASIN | B0CCJ7QZQ7 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #16,322 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Relief Valves |
| Brand | HYDRO MASTER |
| Color | 30 PSI |
| Customer Reviews | 4.5 4.5 out of 5 stars (185) |
| Date First Available | July 10, 2020 |
| Exterior Finish | Brass, Stainless Steel |
| Included Components | Relief Valve |
| Inlet Connection Size | 3/4 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Item Weight | 7.2 ounces |
| Item dimensions L x W x H | 3.2 x 1.6 x 1.8 inches |
| Item model number | 0571101 |
| Manufacturer | HYDRO MASTER |
| Material | Brass |
| Maximum Operating Pressure | 30 Pound per Square Inch |
| Number of Ports | 2 |
| Outlet Connection Size | 3/4 Inches |
| Outlet Connection Type | NPT Thread |
| Part Number | 0571101 |
| Product Dimensions | 3.2 x 1.6 x 1.8 inches |
| Specification Met | CSA |
M**A
Good part fast delivery
Good quality fit well. Arrived timely. Thanks
W**N
Plumber recommended..
So when my boiler system started leaking out of this particular valve, I was of course in the market for a new one. I never knew there were so many different manufacturers of the same item to choose from. Holy crap. On the bright side however my father-in-law has been a plumber for about 50 years and after a quick phone call in his direction I narrowed my search down to well, this one. The only thing he cautioned me on was to look at the old one before you replace it and make sure the new one has the same markings PSI etc etc, and other than that it's pretty easy. Shut off the water supply, relieve the pressure, unscrew the old one and with the use of a little bit of thread tape, screw this one on and snug it down. The whole repair took me about 4 minutes.
P**L
A savior.
Exactly what was needed to replace a failed pressure relief valve on our boiler. Of course it failed in the cold of winter. Timely delivery and was able to keep my family warm.
J**N
Appears well made.
I have never had an occasion to need it. It is a blow-off valve that is actuated when water pressure becomes dangerously high. Since that situation has not occurred (thankfully) I cannot speak to the valve’s effectiveness. I can only say it appears to be well made with brass, stainless steel and a neoprene (?) gasket, and it was reasonably priced.
R**R
well made
works great. good value for the price.
S**I
Perfect
Fast delivery
J**L
Piece of Garbage
My parents bought their house in 1976, and the valve just started leaking. Bought this one, and it leaked IMMEDIATELY! Garbage. Video attached.
D**D
works no leaks
works no leaks
R**S
Buena calidad pero se hará la devolución por necesitar otra medida
P**R
does the job
J**P
Equipo cumplió con las espectativas y llegó antes del tiempo arrojado el día de la compra. Gracias!!!
R**Y
Works for the application on the tankless hot water heater. Swap out of original was quick & easy, ensure proper thread size & pressure rating when purchasing.
J**.
Satisfait
Trustpilot
Hace 5 días
Hace 3 semanas