Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
550-4407 | Waterway Tank Bottom For Crystal Water Cartridge Filters | 550-4400
Fits these models
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Goes with this part
CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
OEM Waterway Tank Bottom 550-4407 is a direct replacement base designed for Crystal Water Cartridge Filters, ensuring structural integrity and continued filtration efficiency. This tank bottom is engineered to fit both new and old-style filter heads without modification, simplifying the installation process. Built from rugged, chemical-resistant materials, it endures high-pressure environments and long-term exposure to pool chemicals. Replacing a damaged or worn tank bottom helps preserve system performance, preventing leaks and maintaining optimal water clarity.
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Direct Fit for Crystal Water Filters: Precision-molded to replace part number 550-4400 and maintain compatibility with Waterway Crystal Water Cartridge Filter systems.
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Heavy-Duty Construction: Made from durable materials capable of withstanding intense water pressure and chemical exposure over extended use.
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Compatible with All Head Styles: Designed to work with both old and new filter head configurations, eliminating the need for adapter parts or adjustments.
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Preserves System Sealing Integrity: Helps ensure a reliable seal at the base of the filter for consistent pressure and filtration function.
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Prevents System Downtime: Essential for scheduled maintenance or emergency repairs to maintain uninterrupted pool operation.
- (1) Tank Bottom
- (1) Drain Plug
- Waterway Crystal Water Cartridge Filters
