Best Relief Valves of 2026

"I was very impressed with how well this relief valve matched my old AO Smith heater—the probe length was spot on. The installation went smoothly, and I found the build quality to be excellent for the price. Camco sells it, but it's labeled as Cash Acme, which worked fine for me. Extremely satisfied."

"This was a straightforward swap for my original leaking TPR valve on a Bradford 50-gallon gas tank. The process was simple, especially with the pre-applied teflon tape. After following basic steps to drain and air out the tank, I had it replaced and running leak-free in no time."

"The first valve I got had a small leak at temperature, but the replacement has worked perfectly since. I was also glad to see it's Made in the USA—a nice bonus."

"When my boiler valve started leaking, I needed a replacement fast. After some advice from my father-in-law, who's been a plumber for 50 years, I chose this one. Installation was super simple—just match the PSI, use thread tape, and it took me under five minutes."

"This was exactly what I needed to fix my failed pressure relief valve during the winter. The delivery was right on time, and it let me keep my family warm when we really needed it."

"The valve looks well-constructed with brass and stainless steel. I haven't had to use it yet, but it seems reasonably priced and solidly made."

"I was really impressed with the super fast shipping and the fact that the product was brand new and high quality. Everything arrived as promised."

"Finding this valve online was a lifesaver since local stores didn’t have any in stock. The exact fit meant I could replace my old, leaking valve quickly, and the two-day delivery literally saved our holiday."

"This valve was a perfect match for my old one and sealed up perfectly with no leaks using just Teflon tape. I’d advise being careful about flipping the relief lever after installation, especially if your furnace isn’t spotless, to avoid introducing debris and causing leaks."

"I was able to install this myself on my well pump, and it saved me from hiring a professional for a basic repair. Definitely a cost-effective solution that works as advertised."

"After replacing a constantly leaking 75 PSI valve with this 100 PSI relief valve, the dripping stopped completely even though my system runs at higher pressure. It's doing the job perfectly so far."

"I wanted a reliable pressure relief valve and this one worked well on my 75lb water line. No issues at all after installation, and the quality seems dependable."

"After doing a lot of research, I chose this temperature pressure valve when my water heater started leaking. Despite having no experience and recently losing my husband, I followed YouTube instructions and was able to fix the heater on my own. It worked perfectly and saved me a huge expense."

"This valve is a big improvement thanks to its compact size and larger handle, which makes routine maintenance much easier. It’s ideal for keeping my water heater warranty valid. The only minor downside is the relief port isn’t fully open, but that hasn’t been an issue for me."

"I was surprised by the excellent quality and fair price of these fittings. They’re just as good as the ones that cost way more at big box stores. There’s no need to overspend on something that does the same job."

"I swapped out my old leaking valve for this one and so far, it fits the correct pressure range. I haven’t put it through a full test yet, but installation was straightforward and it’s working fine at the moment."

"The threads are well-made and the part feels sturdy, but it released at 150psi instead of the 175psi marked. I double-checked the rating and it’s correct, so I’m a bit unsure about the calibration."

"I replaced the part in my Husky compressor and it functions perfectly. However, since my motor’s auto-off isn’t working, this fix didn’t fully solve my problem, but the product itself works as intended."

"I replaced my leaking pressure relief valve with this one. The pressure range matches what I needed, and so far, everything is working fine. Haven’t pushed it to the limit yet, but no issues so far."

"The threads on this valve are smooth, and it feels solid. I did notice it released at 150 psi instead of the marked 175 psi, but it’s definitely the correct labeled part."

"I installed this on my Husky air compressor and it functions exactly as expected. While my compressor’s auto-off isn’t working, the valve itself is performing well."

"I replaced my old leaking valve with this one, and it was a perfect fit for my hot water tank. Installation was a breeze, and I didn’t need any special tools—just a pipe wrench. No leaks at all after install, and I saved a lot of money by doing it myself. Fast delivery from Amazon was a plus."

"This Watts valve is a quality product I can trust. Even though it’s made in China, it still performs flawlessly and isn’t like other low-quality options I’ve seen."

"Installing this on my water heater was simple, and it fixed the leaks immediately. My water and gas bills went down since the heater runs better now. Really glad I went with this product."

"I have well water that tends to wear out valves quickly, but this one has worked well and was simple to install. Because of my water, I keep an extra on hand, but so far, this valve has held up reliably."

"After dealing with multiple leaky valves from other brands, I decided to try Apollo. I waited 18 months before reviewing and it’s been absolutely perfect—no leaks, no issues, just steady performance. It was crucial to clear air from the system and ensure my expansion tank was functioning. The previous brands failed after a year, but Apollo has been trouble-free."

"I initially tried a relief valve from another store and it leaked immediately. After researching, I ordered this one based on positive reviews. Despite the slight delay in delivery, it was worth it—no leaks, strong pressure, and solid build quality. I’d definitely recommend it."

"I appreciate that this is the genuine article, not a knockoff. It fits my boiler perfectly, and I couldn't be more satisfied!"

"After dealing with a leaky old valve, I installed this replacement, and it was a seamless fit. I'm quite happy with the product and the supplier."

"This valve is solidly built and made in Canada. It performed exactly as I expected for my Hayward gas pool heater, making it a reliable OEM replacement."