The In-Line Rainbow 320 chlorinator is a reliable and efficient solution to ensure automatic and constant disinfection of your pool or spa water.
Designed for permanent installation directly in the return line, this chlorinator allows controlled diffusion of chlorine or bromine, without daily handling.
Ideal for both new installations and existing systems, the Rainbow 320 simplifies maintenance while ensuring stable, clean, and safe water quality.
Why choose the Rainbow 320
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Simple and efficient inline installation
Connects directly to the return piping, after the equipment, for optimal disinfectant distribution.
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High treatment capacity
Can hold up to 11 large tablets or 98 small tablets of slow-dissolving trichlor or bromine.
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Versatile compatibility
Designed for PVC piping 2 inches, with adapters included for 1.5 inch.
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Reliable automated treatment
Suitable for pools and spas of 6,500 to 27,000 gallons.
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Safe closed system
No gas release, no special ventilation required.
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Certified quality
Certified NSF, with a maximum operating pressure of 50 PSI.
🔧 Technical specifications
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Brand: Rainbow
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Model: 320
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Type: In-Line Chlorinator
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Compatible products:
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Slow dissolving trichlor
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Slow dissolving bromine
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Capacity:
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11 large tablets
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or 98 small tablets
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Treated water volume: 6,500 to 27,000 gallons
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Fittings: PVC 2" (1.5" adapters included)
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Maximum pressure: 50 PSI
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Certification: NSF
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Part number: R171096
