Watts 0858537|WW0858537 - AS-M1-1-1/2 AIR SCOOP 1/2 VENT (110-347)

This 1 1/2 IN cast iron air separator is used in commercial and residential, hydronic heating applications to separate air from water in the piping system. It consists of a heavy, cast iron body construction with a 1/2 inch female threaded connection for an expansion tank, and a 1/8 inch female threaded connection for a float vent. It provides continuous purging and venting of air in the system when installed with Watts Model ET expansion tank and Model FV4 float-vent. The maximum pressure is 125 psi (8.6 bar).