Description
Pentair Model 300 off-line rainbow feeder, not only saves time but also reduces manual handling of chemicals. They use large or small trichlor or bromine slow-dissolving tablets to make sanitizing your new or existing pool or spa easy and automatic. Both are installed easily on the pressure side of the pump, downstream of the filter and heater.
The freestanding Model 300 feeder features an external fine-control valve that lets you adjust the feed rate to meet specific pool or spa requirements. The Model 300 feeder is ideal for retrofitting existing pools for automatic sanitization. Completely enclosed systems—no escaping fumes. This automatic chemical feeder can sit on top of the pipe run, or to one side, and is connected via saddles to allow the flow of water through the unit. It should be installed after the heater, ideally with a check valve to stop any backflow of chlorine into the pool equipment.
The Pentair model 300 off-line rainbow feeder is simple to control with an external valve for adjusting the feed rate. It does not require special venting and holds 11x 200g tablets or 98 x 20g tablets, making refilling needed less frequently.

Pool Installation Illustration
Features:
- Completely enclosed system, no escaping fumes
- Reduces manual handling of chemicals
- Top loading for easily adding chemicals
- New or Retrofit
- Simple trouble-free design.
- No special venting required
- Treats pools between 25m3 and 180m3
Technical Breakdown:
MODEL 300 FEEDER | ||
---|---|---|
Chamber Capacity | Quantity | Weight |
1″ Tablet | 98 | 3.5 lbs |
3″ Tablet | 11 | 4.8 lbs |
Maximum Erosion in 24 Hours | 1.19 lbs | |
Treats Pool/Spa Size in Gallons per 24 Hours* | ||
@ 10 ppm | 11,900 | |
@ 5 ppm | 23,800 | |
@ 2½ ppm | 47,600 | |
Dimensions | 21″H x 7″W x 12″D | |
Service Clearance for Lid Removal | 22¼” |
*Using 1″ trichlor tabs
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