R172008W-Style Threaded Cap Replacement for Rainbow Automatic Chlorine/Bromine Feeder Pentair Valve Push-Pull which is a common need

which is a common need in pool plumbing system

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or endorsed by Hayward

Simply fill the test vial with your swimming pool water to point line A

Alternate part and cross-reference numbers:

R172008W-Style Threaded Cap Replacement for Rainbow Automatic Chlorine/Bromine Feeder Pentair Valve Push-Pull which is a common needR172008W Threaded Cap: The R172008W Replacement Threaded Cap is designed for Pentair Rainbow Automatic Chlorine Bromine Feeders. This threaded cap creates a secure seal on the feeder, preventing leaks and ensuring proper chemical distribution. It helps maintain safe, reliable operation of the feeder system and must match the correct model for proper fitment. Alternate Parts (for cross reference only): 17 196 1853, PENR172008W, 172008W, RAI 451 4012,