Review on Reliable Lead Check Valve: Aqua 20818 – Ensuring Water Safety! by Bernard Her

Used to replace a weak plastic check valve that has snapped just behind the threads leading to the hot water outlet. I have a 12 gallon Suburban DSI WH and it fit perfectly when I stripped the plastic off the threads (really hard work). Do yourself a favor and check the back of your WH to see if it has a plastic check valve and replace it with a brass valve if it does. This also happened to a friend on his Solitude (although it's not unique to this model or Grand Design products). It's not about if it cracks, it's about when!