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From our technical experts

Rainbow 300 Off-Line Chemical Feeder


  • Rainbow 300 Off-Line Feeder
  • For Chlorine pools up to 181m³
  • For Bromine pools up to 90m³
  • Simple to use
SKU: PAC-451-0054 Categories: ,


Rainbow 300 Off-Line Chemical Feeder

The efficient, easy way to sanitize your pool or spa. The Rainbow Model 300 feeder not only saves time, but also reduces manual handling of chemicals. It uses large or small Trichlor or Bromine slow-dissolving tablets to make sanitizing your new or existing pool or spa easy and automatic. Installs easily on the pressure side of the pump, downstream of the filter and heater.

It 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 system – no escaping fumes
  • Simple, trouble-free design – no special venting required
  • Top-loading makes it easy to add chemicals
  • Clear sided for easy tablet viewing
  • For Chlorine or Bromine
  • Feeder Capacity: 2.2kg
  • Bromine Max pool size: 90m³ (20,000 gallons)
  • Chlorine Max pool size: 181m³ (40,000 gallons)


Free delivery to UK Mainland. For delivery charges to all other areas please call or email giving your postcode.

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Returns Policy

Your rights to return goods are protected under the EU Distance Selling Directive.

You are entitled to cancel your order and return the goods within 7 working days for a full refund not including the cost of delivery. Do this by contacting us by email or telephone and quoting the order number supplied to you. Your refund will be paid within 30 days. You are responsible for the cost and risk of loss or damage when returning the goods, so you should take out enough postal insurance to cover their value. This cancellation policy does not affect your rights when we are at fault - for example, if goods are faulty or incorrectly-described.

Exclusions: Bespoke items (made to measure items) are not included and cannot be returned. If a bespoke item is faulty then the product warranty /guarantee will take effect.

Any goods returned should be in saleable condition.

These terms apply to your order. We may change our terms and conditions at any time, so please do not assume that the same terms will apply in the future.

None of these terms affect your legal rights and these are not diminished in any way. If any term is held to be invalid under any applicable statute or rule of law, that term is automatically omitted from the terms to minimum extent necessary to comply with the law and without affecting the validity or enforceability of the remainder.

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