May 19th, 2014 by Jacqui Blanton

Rainbow 300 & 320 Automatic Chemical Feeder

I don’t know about you, but I hate handling chemicals, if I can make something clean itself automatically, I do. The Rainbow Models 300 and 320 Automatic Chemical Feeders help you save time and reduce your chemical handling.

The Chemical Feeders are freestanding and easily install on the pressure side of the pump. They are downstream of the filter and heater.

The 300 Chemical Feeder is ideal for retrofitting existing pools for automatic sanitization.

Rainbow’s 320 Chemical Feeder is designed for permanent installation in the return line of a system, whether brand new or pre-existing.

Features of the Chemical Feeders include:

  • No escaping fumes – they are completely enclosed systems
  • Simple design – no special venting needed
  • Top-loading – makes chemical loading a breeze

The two models use large/small Trichlor or Bromine slow-dissolving tablets. They make sanitizing your pool or spa a breeze! For more information on the Rainbow 300 & 320 Automatic Chemical Feeders contact the pros at

Rainbow 300 & 320 Automatic Chemical Feeder