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Pentair IntelliChem Water Chemistry Controller Chlorine Container without Pump | 521397

Pentair SKU: 521397
Pentair IntelliChem Water Chemistry Controller Chlorine Container without Pump | 521397 - Chemical Feeders - img - 1

Pentair IntelliChem Water Chemistry Controller Chlorine Container without Pump | 521397

Pentair SKU: 521397
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$449.99
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Pentair IntelliChem 4-Gallon Liquid Chlorine Container (Tank Only, No Pump) | 521397

The Pentair 521397 is a replacement 4-gallon liquid chlorine feed container designed for use with Pentair IntelliChem chemical automation systems and other compatible chemical feed setups that draw from an external tank. This is the tank-only version (no pump included), intended for installations that use a separate external chemical feed pump.

Key Features

  • 4-gallon capacity container for liquid chlorine (sodium hypochlorite).
  • Tank only (no pump): for systems that use a separate external peristaltic pump or chemical feed pump.
  • Designed for IntelliChem: common replacement chlorine container for IntelliChem chemical controller installations.
  • Includes hookup components such as tubing and installation adapters (as supplied with the container kit).
  • Durable construction for equipment-pad chemical storage and dosing applications.

Compatibility

  • Primary use: Pentair IntelliChem chemical controller systems that specify part 521397 for the chlorine container.
  • Also usable with: many third-party chemical feed systems that accept a 4-gallon external tank (verify your pump pickup tubing/fittings).
  • Important: This container does not include a dosing pump. If you need a tank with a tank-mounted pump, choose the pump-mounted container assembly instead.

What’s Included

  • (1) 4-gallon chlorine container
  • Connection tubing and adapters (as packaged)

Common Reasons to Replace

  • Cracked container, leaking fittings, or damaged lid/seal
  • UV/sun damage that makes the tank brittle
  • Rebuilding a chemical feed system and replacing worn chemical-storage components
  • Odor/fume leakage due to a compromised cap or fitting area

Installation Notes

  • Place the container on a stable, level surface in a well-ventilated area and secure it to prevent tipping.
  • Route suction tubing to your external pump with smooth bends and avoid kinks or pinch points.
  • Use a proper injection check valve at the plumbing injection point to reduce backflow and improve dosing consistency.
  • Always follow chemical handling guidance and local code requirements for installation and storage.

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Maintenance Tips

  • Keep the container out of direct sun and excessive heat when possible to help reduce chlorine degradation and extend tank life.
  • Inspect tubing for brittleness, cracks, or salt/chemical crystallization and replace as needed.
  • Check for air leaks on the suction line (loose fittings can cause weak or inconsistent dosing).
  • Rinse any drips/spills promptly and keep the container area clean to reduce corrosion of nearby equipment.
Questions about returns? View our return policy.

Hours Of Operation: 

Monday - Friday: 8:00 am to 4:00 pm Phoenix Time

Saturday and Sunday: Closed

  • Orders costing more than  $300 WILL be required to have signature confirmation upon delivery.
  • Handling time is typically only 1 day.   
  • Any item ordered after 1pm Phoenix time, may not ship same-day.
  • Call us if you require expedited shipping and we can give you quotes based on your needs.

Return Policy:

  • All products, except as noted below, are eligible for return up to 30 days after receipt of item.
  • For returns, an RMA form must be filled out HERE or customers can call for additional help.
  • Shipping costs will be deducted from all returned items.
  • Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in. 
  • Items broken, damaged, or inoperable due to installer error will not be refunded.
  • Fill out the return form or give us a call to obtain an RMA and return shipping label.
  • There are no returns on the Pentair Colorsync 618031
  • No returns on pool cleaners.
  • No returns on opened seals and o-rings.
  • No returns on capacitors.
  • If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
  • All products denied upon arrival at customers house WILL be charged the cost to ship.
  • Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
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