1-1/2' AMTROL CAST IRON AIR PURGER

Amtrol 445 Air Purger is a one-piece cast-iron chamber with two passages through which system waters from your boiler must flow. Internal contours and baffles are designed to efficiently separate air from water trapping air bubbles in a collection chamber to which an Automatic Air Vent is connected for releasing the air into the environment and from your heating system.