Check the listing for details. 3/4" Tankless Water Heater Isolation Valve Kit Pressure Relief CSA approved used. Condition: Used. Listed at 53.99 USD. We are always here sincerely when you need help!Fits all tankless water heaters that have 3/4" MPT outlets!Efficient and convenient by combining the functions of unions, drains, and ball valves; one valve kit does the job of up to ten fittingsEase of installation saves time & money on the jobEffective, integrated design means less chance of leaks and decreased callbacksSpecifications: Hot & Cold Set of Full Port Forged Brass Ball Valves CSA Certified 1/4-Turn, color coded handles are forward facing, even after installation, allowing for easier use and accessibility3/4" Tread For Tankless Water Heater Connections and 3/4" Male PEX ConnectionMade of heavy-duty forged brass,The product is equipped with full passage ball valve,with larger flow rate