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.
Waterway 400-5271B Split Nut | For DE Filters | 2.5"
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Goes with this part
CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
OEM Waterway 400-5271B Split Nut is a 2.5-inch replacement nut crafted for Waterway DE filters, used to secure plumbing joints and maintain watertight seals in pool and spa systems. Built from durable PVC, it withstands exposure to pool chemicals and harsh outdoor conditions. Commonly included as a factory part on Waterway DE filters, this nut provides dependable, long-term sealing power. Its user-friendly design makes it quick to install or replace, ensuring your system continues to operate without leaks or disruptions.
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Designed for Waterway Filter Systems: Specifically built to secure 2.5" plumbing joints on DE filters, ensuring compatibility and performance.
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High-Strength PVC Material: Manufactured from long-lasting plastic formulated to resist cracks, pressure damage, and corrosion.
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OEM Part for Many Filter Models: A trusted component pre-included with Waterway DE filters, making it an ideal direct replacement.
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Simplifies Service and Repairs: Allows for fast, hassle-free installation without needing specialized tools or extra fittings.
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Maintains Tight Seals in Harsh Environments: Supports the filtration system with leak-resistant performance under daily use.
- (1) Split Nut
- Waterway DE Filters
