Common Questions Is the Watts 0780329 compatible with my existing C5 float valve

Engineered as the direct replacement for the legacy 4004/53 series

making it a drop-in replacement for standard DIN-sized cutouts or surface installations

If the switch has no continuity even after pressing the manual reset button

inspect the slinger washer and whipper base alignment

EWC Controls PRD Regulating Damper 30067439-890 Common Questions Is the WattsEWC Controls PRD 12" Pressure Regulating Damper Made in USA. Model PRD RD pressure regulating damper is a single blade, round variation of a barometric relief damper. This is the simplest, most economical way of bypassing excess static pressure in multi zone applications. Resistance is controlled by offsetting the arm and adjusting the weights. The arm can be inserted into either side of the damper for added versatility.