Watts FP-RFK-BF-BMS-CFS 2 1/2-10 - Part of the SentryPlus Alert Technology Series Tactile Paving This 3/4 inch dual check

This 3/4 inch dual check valve backflow preventer with atmospheric vent prevents the reverse flow of hot or cold polluted water from entering into the potable water supply

Ideal for super-large-area primary roof drainage applications

It features an iron body H-pattern design

1/2 IN (15 MM) NPT connection

Solder end connections

Watts FP-RFK-BF-BMS-CFS 2 1/2-10 - Part of the SentryPlus Alert Technology Series Tactile Paving This 3/4 inch dual checkThis BMS flood sensor retrofit kit includes a flood sensor, sensor activation module with cable, ground wire, and power adapter. Use this kit to install the flood sensor and enable flood detection capabilities on the relief valve of an existing installation linked to a BMS controller (not included). For use with models: Watts 957, 957RPDA, LF957RPDA, 994, Ames C400, C500, LFC500 sizes 2 1 2 to 10 IN. For use with models: Watts 994RPDA, Ames 5000SS