Libra Supply 3/4 inch Sweat Tankless Water Heater Isolation Valve Kit with Pressure Relief Valve, FNPT x Sweat, 3/4'' Service Valve Kit for Rheem, Rinnai, Ecosmart Navien Noritz Takagi Bosch

Great products, excellent company/seller

If there were a 6th star ida put 6. Quality parts. This is for a tankless water heater. These parts should have been in with the water heater. The water heater company leaves the out to keep “There” price down. I know, a shadey sales trick. The only thing I added was a 3/4” check valve to the cold side (on the bottom). Hot and cold sides come with a union coupling on the heater side for easy service disconnect. Very professional on their part. Down side..... brass and copper part aren’t cheap. Gr8 product.

Package was opened (box cutter marks taped over), had pieces of cardboard inside one of the valves, and what looked like light wrench marks on one of the valves. No hot water valve included, only two cold water valves. Referencing the two cold valves they sent, they appear to be good quality. The pressure relief valve they sent looked cheap and poorly made. Returned and purchased unit from another vendor.

I found these tankless water heater valves fine to install. You do have to sweat (solder) a piece into the bottom of the fitting to connect to the supply lines but other that that they go on pretty easy. However the discharge side leaks from a seam on the valve body when the branch line is open. You can see the water drop in the picture is not from where the hose is connected but actually from the joint in the valve body where the threaded coupler meets the branch. This is not a huge deal as both of the other seams on the two other ends of the valve don't leak and the branch valve is closed most of the time but it does show lack of quality/QC.

I Purchased the 3/4 pex connection. This is not for 3/4 pex! A 1 inch pex fit snugly on. I ended up making two small slits on the 3/4 pex pipe, using the heat gun I heated the pipe and the fitting, and forced the pipe on there. It took me two tries to figure out best way to do it. I live 2 hours from Home Depot, so this was the only option, that or being without water for days. Since I already uninstalled our old system.Very disappointing, especially when I realized it was the wrong size, mid install.