WATTS®, 0590723, Air Vent Valve, Automatic, Series: FV-4, 3/4 in Nominal, 1.45 to 150 psi Pressure, 33 to 240 deg F, Brass Body, Silicone Rubber Seal Softgoods, 3-3/8 in H Dimensions, Import
Body Material : BrassDimensions : 3-3/8 in HDomestic/Import : ImportNominal Size : 3/4 inPressure Rating : 1.45 to 150 psiSoftgoods Material : Silicone Rubber SealTemperature Rating : 33 to 240 deg FType : Automatic
Body and cover are brass constructionAir vent with silicone rubber sealImpurities do not usually affect function as maximum float line of water is always lower than the valve sealFloat is high temperature resistant polyethyleneSuitable for use with glycol systemsCan be disassembled for inspection and cleaning