Tankless Water Heater Service Valve Kit, Brass Construction, 4-1/4 inch Overall Length, 3/4 inch, 398 psi Max. Pressure, IPS Union x IPS Connection, PTFE Seat, Maximum Temperature: 180 Deg F, Consist Of: Hot And Cold Set Of Full Port, Forged Brass Ball Valves With Hi Flow Hose Drains And Pressure Relief Valve Output And Adjustable Packing Gland, Standards: NSF/ANSI 61 & NSF/ANSI 372, Lead-Free Compliant, Residential or Commercial Use With Potable Water