Rainbow Automatic Chlorine or Bromine Off-Line Feeder Model 300 size-in-gallons_301-500 and is designed to warn

and is designed to warn patrons that children must be supervised when no lifeguard is on duty

This kit among 19 others have been granted NSF certification and are listed under NSF/ANSI 50 Equipment for Swimming Pools

It comes pre-assembled in the box

It is used for buffering pH Test with Taylor Kits

Rainbow Automatic Chlorine or Bromine Off-Line Feeder Model 300 size-in-gallons_301-500 and is designed to warnThe Rainbow Model 300 Off Line Automatic Chlorine or Bromine Feeder will treat pools and spas from 12,000 to 48,000 gallons per day. This model 300 is freestanding and holds 11 large or 98 small chlorine tablets. The feeder uses large or small Trichlor or Bromine slow dissolving tablets to make sanitizing your existing pool or spa easy and automatic. Plus, the Rainbow Model 300 installs easily on the pressure side of the pump, downstream of the filter