Pentair Rainbow 330 Floating Tablet Dispenser, 1" or 3" Tabs (R171086) polymeric and this Filbur FC-3753 cartridge

and this Filbur FC-3753 cartridge is designed for C-4313 and PBW4PAIR applications

Helps protect the supported turbine area and preserve finished appearance

Replacing the switch helps restore proper flow recognition when plumbing

Balanced blower systems provide steady airflow with reduced vibration

A quad LED light assembly is useful because it provides integrated illumination in a matched format

Pentair Rainbow 330 Floating Tablet Dispenser, 1" or 3" Tabs (R171086) polymeric and this Filbur FC-3753 cartridgeCorrect fit matters when water, sanitizer, or pressure must move through equipment reliably. The Rainbow 330 Floating Tablet Dispenser, 1" or 3" Tabs is a Pentair Rainbow replacement for chemical feeder service, helping helps maintain controlled sanitizer delivery. In feeder service, correctly matched small parts help manage sanitizer flow, reduce nuisance leaks, and keep maintenance more predictable. Matches compatible equipment applications that