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.
O-429 | Aladdin Hayward Filter Tank O-Ring | DEX2400K
Fits these models (4)
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
The Aladdin Hayward Style Replacement Filter Tank O-Ring (O-429) is a precision-engineered replacement seal designed as a direct fit for the original Hayward DEX2400K O-ring specification. This durable elastomer O-ring creates a reliable, watertight seal at the tank clamp joint of compatible DE pool filters, preventing leaks and maintaining efficient filtration performance. Built to withstand repeated compression and exposure to pool chemicals, it makes routine maintenance or rebuilds simple and effective. Ideal for owners of Hayward Pro-Grid, Micro-Clear, SwimClear and Super Star Clear DE filters that require the O-429/DEX2400K seal, this replacement part helps keep your pool water clear and your filtration system operating smoothly.
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Direct OEM Replacement: Designed to match the original Hayward DEX2400K O-429 O-ring dimensions for a proper, leak-free fit.
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Durable Elastomer Material: Resists degradation from chemicals and repeated use to ensure long-lasting performance.
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Reliable Watertight Seal: Helps prevent water and air leaks at the filter tank joint for optimal filtration efficiency.
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Easy to Install: Simple to replace when servicing or rebuilding the filter—just lubricate lightly before seating.
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Wide Filter Compatibility: Fits many Hayward DE filter models that use the O-429/DEX2400K tank seal.
- Hayward ProGrid DE Filters: DE2420, DE3620, DE4820, DE6020, DE7220
- Hayward SwimClear Filters
- Hayward Super StarClear Filters
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Hayward Micro-Clear DE Filters