Isolator valves can be used for many different plumbing applications, from circulation pumps to tankless (flash/instant) water heaters. We sell them in pairs as they are used with most tankless water heaters. PlumbingSupply.com is your best source for these isolations valves shown below as well as tankless water heaters and all your other plumbing supply needs.

"The Isolator"
Water Heater Isolation Valves

These water heater isolation valves feature: Easy two step installation of your tankless water heater with unsurpassed safety, features and benefits. Complete inlet/outlet valve system that provides everything you need for a secure installation including full port testing and flushing of the system with easy to install union connections. Extra features like a full port for full flow throughout the valve including a full port outlet for purging, flushing and testing the system. The ability to drain your hot water lines throughout the building or just at the water heater with a quick quarter turn. An outlet for your pressure relief valve Protection for the life of your system Emergencies are handled with quick quarter turn ball valve shut-offs for total isolation of your system in seconds. Repair or replace your heater in minutes with easy-fit union style connections that do not disturb your piping system.

Description	Price & Quantity
Isolation Valve - Set/Pair (Hot & Cold) 3/4" IPS Union x 3/4" IPS (shown)	$89.88
Isolation Valve - Set/Pair (Hot & Cold) 3/4" IPS Union x 3/4" Sweat	$89.94
Pressure Relief Valve - Brass - 3/4" - 150 PSI For the isolation valves shown above	$13.97

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