Watts 0342691 30 PSI Pressure Relief Valve, Bronze, 3/4" 335 M2-030

Valve installed easily and when the pressure exceeded 30 PSI, it vented and prevented an overpressure situation.

There are other options for 30psi, 178000 BTU boiler relief valves. They all cost more b/c they include various bells and whistles. This one seems to strike the right balance between the quality and the price. It's been on for about half a year and has not leaked (knocking on wood) yet. I expect it to continue this way for at least 20 years. As long as it does, this will stay a 5-star review.

I replaced my valve. I don't know how old my old valve was. Not that old, I would think. My old valve started dripping last year, about 12 oz per day. The guy cleaning my fuel jets, told me he could replace it for $800. I said no. It increased it's leaking to 48 oz ever 2 days. Then, a cold snap hit this week, and my boiler is running hard. The valve started leaking 48 oz every 30 seconds. I bought this valve with same day shipping and fixed it myself in less than 15 minutes. I don't know how long this will last. But who cares? If I get 1 year, or 10, it cost 25 bucks. It looks quality, and has some left to it.

Appreciated the promptness

Exact fit and easy to replace on my existing boiler / heating system

See above

Nearly 70 years old and I can finally say, I've replaced one of these. The original lasted since 1985. Time will tell if this one lasts that long...I won't be around to know. Good quality piece.

Perfect fit!