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Replacing the cartridge restores proper filtration and protects the pump from unnecessary strain
Primary application: pool and spa water care for salt-based systems
simplified maintenance: designed for straightforward installation and removal
It is often serviced after winterizing or repeated basket cleanouts
It supports routine maintenance tasks in various lighting contexts
Pentair Rainbow #300 Off-Line Chlorine/Bromine Feeder, White, 3" Tabs | R171016 Salinas Replacing the cartridge restores properWhat This Part Is Used For Pentair R171016 Rainbow Model #300 Off Line Chlorine Bromine Feeder White, 3in Tabs is an off line chemical feeder designed to dispense 3in chlorine or bromine tablets. It connects to the return line for controlled sanitizer delivery. Why This Part Matters Automatic feeding systems reduce manual chemical dosing. Consistent tablet dissolution supports steady sanitation levels. Replacing outdated feeders improves reliability