Waterway Crystal Water Tank Body w/ Labels | 550-4407
Waterway
SKU: 550-4407
Waterway 550-4407 Filter Tank Bottom Body with Labels
Part Number: 550-4407
Description
Replacement lower tank body shell designed for the Waterway Crystal Water cartridge filter series. This robust body features a durable molded construction, integrated labeling for easy servicing, and is engineered to restore the structural integrity of your filter system when the original tank bottom is cracked, leaking or otherwise compromised.
Compatibility & Fitment
- Fits Waterway Crystal Water cartridge filter assemblies rated at 425 sq ft and 525 sq ft when the lower tank body needs replacement.
- Listed as a direct replacement for older style part number 550-4400 for backward compatibility.
- Ideal for refurbishment of the tank when top shell remains usable but the bottom half shows damage or corrosion.
Features & Specifications
- Gray molded tank bottom with factory-applied labels for service ports and safety warnings.
- Outer diameter of top opening approximately 20.5 inches — allows fit with existing filter heads and clamps.
- Manufactured from heavy-duty plastic engineered for pool chemical environments and UV exposure.
- Blank body — does not include internal cartridge modules, clamp band or head assembly.
Installation Notes
Shut off circulation and relieve system pressure before servicing. Remove the clamp or locking ring securing the filter head, detach the top shell, and lift off the old bottom. Inspect the drain plug and threads, then position the new 550-4407 body on the filter base. Secure the head shell and clamp evenly, install cartridge modules if required, fill and pressurize system while checking for leaks at the joint and drain port.
Maintenance Tip
During annual filter service, inspect the tank body shell for signs of cracking, damage from backwash reversals or wall thinning. Replace the body promptly if any deformation is detected, as a compromised shell can lead to catastrophic failure under pressure and result in unscheduled downtime.
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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