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This prevents standing water
Simplified installation footprint reduces labor hours during preventative maintenance and coil replacements
the valve must be installed with the stem in the vertical position
Encased in a durable NEMA 1 rated red housing
we recommend replacing the 40-micron polyethylene element to ensure original flow specifications
Resideo FM911 Valve Els PW 17895 This prevents standing waterThe Resideo FM911 (identical to the FM911 U) is a high performance boiler fill valve and backflow preventer combo engineered for precise hydronic heating system maintenance. This 1 2 inch assembly features a pressure regulating valve factory preset at 12 PSI, though it is field adjustable from 4 to 60 PSI to accommodate systems in buildings up to 12 stories. Designed specifically for expansion tank mounting, the unit utilizes a balanced seat piston
US$ 609.98
US$ 18.48
US$ 54.95
