Watts ASM1 3 - Part of the AS Series Drain Fitting The bottom drain easily connects

The bottom drain easily connects to the underside of the channel drain

trench drain

The standard outlet is no-hub

rooftop landscapes

stainless steel stem and spring

Watts ASM1 3 - Part of the AS Series Drain Fitting The bottom drain easily connectsThis 3 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