Manufacturer Name: Resideo Product Number: EA79A1004 OEM Part Number: EA79A1004 Product Description: 3/4"Autoairvent W/Shutoff Weight:1.07lbs/485.34g The Resideo EA79A1004 is an Automatic Air Vent with a Shut-Off, which is an essential accessory for air ventilation in hydronic heating systems. It is an automatic air vent suitable for a 3/4-inch pipe that discharges trapped https://www.partshnc.com/ea79a1004-resideo-34-automatic-air-vent-w-shutoff