CMI Inc - 3/4 Inch Tankless Water Heater Installation Kit – With Isolation Valves, Pressure Relief Valves, Ball Valve, and Inline Flush Parts – Cold & Hot Water Plumbing Repair Kit – Female to Female

Working great

It came with every thing need for tankless installGreat qualityI'd buy it againFast shippingDid I mention quality brass parts all in one package no need to go to hardware store twiceEven came with the tethlon tape.Nice going guys

Basically, this is a great kit for installing a tankless water heater. The main problem is, the REALLY NICE looking 3/4 inch nipples are machined absolutely cylindrical, which causes them not to seal into the valve set. They seal fine into the flex water lines because there's a rubber washer it butts against. After applying more pipe dope, then using a different brand, I noticed the MPT was not tapered, which is standard with MNPT! Basically, I purchased two 3/4 inch x 1-3/4 inch MPT nipples and that quickly resolved my leak issues!This was just an unnecessary PIA to deal with.... ALL the other parts worked GREAT and was a very complete package for installing a tankless water heater.

After trying to get BOTH included close nipples to seal in the valve 4 different times each, trying more Teflon tape then more Teflon tape with pipe dope, cleaning everything in between, I gave up and reused the old nipples from the original install. Sealed the first try, no problem.Wasted about an hour of my time over the initialinstall with a lot of added frustration.

Comes with almost everything you need to put the water heater together just get the teflon tape for gas. Other than that everything is good

I didn’t use this product because the gas pipe was 5/8 not 3/4