Xiny Tool 3/4-Inch IPS Isolator Tankless Water Heater Service Valve Kit with Pressure Relief Valve, Clean Brass

As a retired HVAC tech I dealt with valves of various types for 38 years. Usually if you buy something like this off Amazon for about 1/2 of what most valve flush kits cost you expect some quality to be lacking. This is not the case with this valve flush kit at all. They might be made in a sweat shop on the other side of the world (or not) but the quality, fit and finish is very good. If I owned a business installing tankless water heaters I’d have no problem using this kit on my instillations. I can’t imagine paying $75-$90 for another flush valve kit because in my opinion this product is just as good.

These works great so far and worth the money. Installed them to my tankless water heater.

Was confused with all the different listings online as to what I needed to buy. This item was very nice quality and I had no issues and no leaks. These are standard 1 inch US pipe threads so no issues on standard appliances in the US. Installed on a rannai. I purchased an elbow to orient the pressure relief valve in a tighter configuration so as not to extend past heater width, see pic. Used 1 inch to 3/4 reducers to mate up with my existing in and out plumbing lines. Other listings may be fine but I know this one is US compatible and of very high quality. 1/2 the price and better quality than my local big box store.

i found these to a solid set of valves, feels well made. i needed to replace a leaky pressure relief valve and the cost of one PR valve it was better to get this kit since i hadn't yet added the two shutoff unit valves, but time will tell if these develop a leak. suggestion Xiny, you should add two 3/4" nipples in this kit, because i wound up having to run out in search of nipples to complete the install. note: if you are going to buy this kit, also grab the nipples.

As advertised, arrived safe and on time. Fantastic

work perfectly

We replaced a leaking outdoor gas tankless hot water heater on our home. These types of values were on the old unit. They were 17 years old, so we wanted to replace the old ones for the new installation. These are important for they are not just cut off values. These allow you to service flush the heater to remove built up from water containments. Very simple to install. They are a must use for tankless heaters.

This is a good material and good price too