Compatibility: Designed to fit most 3/4" NPT tankless water heaters, both electric and gas models. Service Ball Valves: Enables you to isolate the heater for maintenance without needing to turn off the entire water supply. Features color-coded handles (red for hot and blue for cold) for straightforward identification. Pressure Relief Valve (150 PSI): Helps prevent hazardous pressure accumulation in the hot water line, thereby improving safety. Durable Brass Construction: Crafted from lead-free, CSA-certified brass that provides resistance to heat and corrosion, ensuring long-lasting performance. Easy Installation: Comes with threaded connections (no soldering required) and an easily removable brass cap for quick hose attachment during flushing. 3/4 Inch IPS Valve Kit for Isolator Tankless Water Heater, Quality Brass Build for Rheem, Rinnai, Ecosmart, Navien