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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: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

  • We do not ship on Saturday or Sunday.
  • Orders totaling more than $300 will require signature confirmation upon delivery.
  • We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
  • Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
  • Expedited shipping options are available at checkout.

Return Policy:

  • Products that are received damaged will receive a refund in store credit.
  • Most products are eligible for return within 30 days of receipt, except where noted below.
  • To initiate a return, please complete an RMA form prior to sending your item back.
  • Original shipping costs are non-refundable and will be deducted from the return credit.
  • Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
  • Some returns will be charged an automatic 15% restocking fee.
  • We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
  • Please complete the return form to receive your RMA number and return shipping label.
  • Chemical products are not eligible for return under any circumstances.
  • The Pentair Colorsync 618031 is not eligible for return.
  • Pool cleaners are not eligible for return.
  • Opened seals and o-rings are not eligible for return.
  • Capacitors are not eligible for return.
  • Plastic popup tools are not eligible for return.
  • Automation components and circuit boards are not eligible for return.
  • If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
  • Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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