Pentair Rainbow 320 inline chlorinator – R171096

Simplify the disinfection of your pool or spa with the Pentair Rainbow 320 in-line chlorinator (R171096). Installed directly on the filtration system’s return line, it gradually dispenses slow-dissolving chlorine or bromine tablets to help maintain the sanitizer level in the water.

With its large capacity and adjustable distribution setting, the Rainbow 320 is a practical solution for automating part of the routine maintenance of a residential pool or spa.

Automatic chlorine or bromine distribution

The Rainbow 320 is designed to gradually release sanitizer into the water while the circulation system is operating.

It can:

• Reduce the frequency of manual additions
• Make it easier to maintain sanitizer levels
• Achieve consistent chlorine or bromine distribution
• Simplify maintenance routines
• Integrate treatment directly into the plumbing system

Large tablet capacity

The Rainbow 320 tank can hold up to:

• 11 large tablets
• or 98 small tablets

It is designed for use with:

• Slow-dissolving trichlor tablets
• Slow-dissolving slow-dissolving bromine

This capacity allows you to space out refills according to your installation’s sanitizer consumption.

Permanent in-line installation

The The Rainbow 320 is an in-line model, meaning it installs directly into the circulation system’s plumbing.

It is designed for connections using 2-inch PVC and includes 1.5-inch adapters, making it easy to integrate into various compatible installations.

The chlorinator may be suitable for a new installation or for replacing an existing unit when the plumbing specifications match.

For pools and spas

The Pentair Rainbow 320 can be used with various compatible residential installations, including:

• In-ground pools
• Compatible above-ground pools
• Spas
• New installations
• Existing filtration systems

Treatment capacity

According to the specifications provided, the Rainbow 320 is suitable for water volumes of 6,500 to 27,000 gallons.

The amount of disinfectant required varies depending on water volume, temperature, usage, and the parameters measured in the water.

Key features

Brand: Pentair / Rainbow
Model: 320
Part number: R171096
Type: Automatic inline chlorinator
Compatible disinfectants: Slow-dissolving chlorine or bromine
Capacity: Up to 11 large tablets or 98 small tablets
Recommended water volume: 6,500 to 27,000 gallons
Main connection: 2 in. PVC
Adapters: 1.5 in. included
Maximum pressure: 50 PSI
Certification: NSF
Application: Pool and spa

Easier maintenance

The Pentair Rainbow 320 chlorinator allows disinfectant distribution to be integrated directly into your pool or spa circulation system. Its large capacity and compatibility with chlorine or bromine make it a practical solution for reducing daily handling.

Always follow the manufacturer's instructions, the directions on the disinfectant label, and the recommended parameters for your water. Never mix different chemicals in the chlorinator.

Available from Hippocampe Pool.