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ZB415B-4NH
ZN1995-3NL
For use with additional cold-vulnerable
This thermometer features a 3 inch dial with temperature range minus 22 to 122 degrees F
Watts T1450F-STD - Part of the 1450F Series R304 Detectable Warning Surfaces ZB415B-4NHThis 1 2 inch dual control regulator and relief valve is for use in commercial and residential hydronic heating systems to fill the boiler and piping system with water, and to maintain water pressure in the system at all times. It also provides make up water to the system in the event of system leaks. It consists of an iron and bronze body construction with NPT threaded inlet and outlet connections, an attached iron body, a tight seating check valve,