Product Description

Pentair Rainbow 300-29X High Capacity Off-Line Automatic Chlorinator – R171070

The Pentair Rainbow 300-29X is a high-capacity, off-line automatic chlorinator designed for efficient and consistent chlorine delivery in residential and commercial pool systems. This unit is ideal for large pools or seasonal operations that require longer maintenance intervals and greater chemical capacity.

Key Features:

• High-Capacity Design: Holds up to 11 large or 98 small slow-dissolving tablets (Trichlor or Bromine) to treat pools up to 40,000 gallons or more.

• Off-Line Configuration: Installs off the main return line using included tubing and fittings—ideal for systems where in-line installation is not possible.

• Heavy-Duty Construction: Made from corrosion-resistant materials designed to withstand outdoor elements and aggressive sanitizers.

• Adjustable Feed Rate: Control valve allows precise adjustment of chlorine delivery to match pool demand.

• Easy Maintenance: Screw-on lid with safety lock for secure access and quick refilling.

Specifications:

• Model: Rainbow 300-29X (R171070)

• Type: Off-Line, High Capacity

• Chemical Type: Trichlor or Bromine Tablets

• Installation: Off-line (bypass installation)

• Pool Size: Up to 40,000+ gallons

• Pressure Rating: 50 PSI maximum

Included With Unit:

• Off-line installation kit (tubing, clamps, fittings)

• Control valve

• Safety-lock lid

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