Pentair Rainbow 300 offline chlorinator – R171016

Simplify your pool maintenance with the Pentair Rainbow 300 off-line chlorinator. Designed to automatically dispense slow-dissolving chlorine or bromine, it maintains a constant level of sanitation to keep your water clean, clear, and safe throughout the season.

Easy to install on existing filtration systems, the Rainbow 300 reduces manual chemical additions and provides reliable treatment, even while you are away.

Effortless automatic sanitation

The Rainbow 300 gradually dispenses sanitizer to maintain a consistent concentration in the water.

Benefits

Automatic chlorine or bromine dispensing

Maintains clean and balanced water

Reduces manual chemical additions

More stable water quality

Simplified maintenance

A practical solution for getting the most out of your pool.

Large capacity for less maintenance

Thanks to its large-capacity tank, the Rainbow 300 requires less frequent refills.

Capacity

Up to 11 large tablets

Or up to 98 small tablets

Compatible with slow-dissolving trichlor tablets

Compatible with bromine sticks

Extended autonomy that reduces the frequency of maintenance.

Simple and quick off-line installation

The Rainbow 300 installs on the pressure side of your existing filtration system.

Features

Off-line installation

Simple connection to the plumbing system

1/4 in. feed tubes included

Adjustable control valve

Installation fittings included

An ideal solution for new installations or existing systems.

Safe operation

The Rainbow 300 operates in a fully enclosed system to provide reliable and safe use.

Benefits

No external fumes

No additional ventilation required

Safe operation

Durable design

NSF certification

Peace of mind season after season.

Compatible with large pools

Its high capacity allows it to effectively treat large residential pools.

Applications

In-ground pools

Large residential pools

Certain commercial installations

Existing filtration systems

Key features

Automatic off-line chlorinator

Compatible with chlorine and bromine

Large capacity

Off-line installation

Adjustable control valve

Tubes and fittings included

NSF certification

Pentair quality

Technical specifications

Product

Automatic pool chlorinator

Brand

Pentair

Model

Rainbow 300

Type

Off-line chlorinator

Compatible sanitizers

Slow-dissolving trichlor tablets

Bromine sticks

Capacity

11 large tablets

Or 98 small tablets

Water volume treated

Up to 48,000 gallons

Installation

Off-line

Maximum pressure

50 PSI

Certification

NSF

Benefits of the Pentair Rainbow 300

Automatic sanitizer dispensing

Compatible with chlorine and bromine

Large loading capacity

Reduced manual maintenance

Simple installation

Safe operation

NSF certification

Recognized Pentair reliability

Package contents

1 Pentair Rainbow 300 chlorinator

1/4 in. feed tubes

Adjustable control valve

Installation fittings

Product documentation

Automate your pool maintenance

The Pentair Rainbow 300 off-line chlorinator is a reliable, high-performance solution for keeping your water clean and thoroughly sanitized without the hassle of daily manual additions. Its large capacity, simple installation, and safe operation make it an excellent choice for residential pool owners who want to reduce maintenance while enjoying optimal water quality.

Available now at Piscine Hippocampe.

Your purchase at Piscine Hippocampe

Our team in Delson can advise you based on your equipment model, photos, and part references. Prepare this information to make selection easier and verify which accessories are required.