Tankless Water Heater Installation Valves (TIV) FNPT / Thread - For ALL Tankless Heaters 3/4" Connect + (1) Free I LOVE BOOBIES Bracelet to Support Breast Cancer Awareness RECEIVE (1) FREE APPLE iPHONE 6 4.7 TPU RUBBER THIN BUMPER FRAME CASE (Color BLACK) Designed for installation, maintenance, purging, flushing and use with the Un-Clog-It Descaling Kit Emergency shut off is easy as a  turn of the TIV ball-valve handle Union assembly connects to water heater for easy removal Allows for Full Diagnostic Testing of Heater. Makes installing your tankless water heater easy!