Air Vents

Watts 590715 1/8" Automatic Air Vent Valve FNPT This 1/8 inch automatic air vent valve is used in commercial and residential hydronic heating applications to provide automatic air venting for hot or cold water distribution systems. It consists of a brass...

Watts 590723 3/4" Brass Automatic Air Vent Valve This 3/4 inch automatic vent valve is used in commercial and residential hydronic heating applications to provide automatic air venting for hot or cold water distribution systems. It consists of a brass...