Amtrol 443 In-Line Air Purger 1" NPT 125 PSI

The Amtrol 443 In-Line Air Purger 1" NPT 125 PSI removes trapped air from hydronic water by separating air bubbles from the circulating fluid. Its internal chamber slows fluid movement, allowing released air to collect near the venting section while water continues through the piping. Installed near circulation points, the purger removes accumulated air from the hydronic loop in HVAC systems before it can interfere with fluid movement. The 1" NPT connections provide threaded interfaces with compatible piping. This separation process reduces air presence in the circuit and maintains consistent water circulation through connected heating equipment.