Description
Pleatco Ultra-A1-PAK4 Cartridge + O-429-BAGGED O-Ring Bundle
Fits Hayward C4000–C4030 and C4500 series; replaces CX570XRE and CX580XRE. PurePleat, Point-Bonded fabric, and Free-Flow Core for efficient, durable filtration.
Features
- Compatible with Hayward C4000, C4000S, C4020, C4025, C4030, C4500, C4520
- Replaces CX570XRE and CX580XRE filter cartridges
- PurePleat design maintains pleat integrity and maximizes media area
- Point-Bonded media ensures stable, even contaminant capture
- Free-Flow Core enhances water flow, decreases pressure, and extends cycle time
Includes tank O-ring
Description
The Pleatco Ultra-A1-PAK4 cartridge is a durable, high-performance replacement for several Hayward tank filters. It fits multiple models—from C4000 to C4520—and replaces older CX570XRE and CX580XRE filters. With PurePleat technology to eliminate pleat bunching, Point-Bonded media for consistent filtering, and a Free-Flow Core to reduce system strain, this cartridge delivers lasting clarity and efficiency. Paired with a fresh O-Ring to make replacement a breeze
Pro Tip
Use a low-pressure rinse monthly to protect pleat structure. Check o-rings on installation for proper fitting and seal.
Installation Tips
Ensure cartridge fits OEM dimensions before installing. Use only low-pressure water for cleaning to avoid damaging media. Lubricate o-rings for accurate sealing.
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