Manufacturer Name: Xylem-Hoffman Specialty Product Number: 79 OEM Part Number: 79 Product Description: 3/4" X 1/2" Water Vent 75 Psi 250F 401488 Weight:1.5lbs/680.39g The Xylem-Hoffman Specialty 79 - 3/4" x 1/2" Water Vent (75 PSI, 250°F, Part # 401488) is a reliable and efficient water vent valve designed for use in high-performance systems. It efficiently removes ... https://www.partshnc.com/79-xylem-hoffman-specialty-34--x-12--water-vent-75-psi-250f-401488