Pleatco Ultra-A1-PAK4 Cartridge – Fits C4000 Series & Replaces CX580XRE | ULTRA-A1-PAK4 Waterway These parts can wear and

These parts can wear and deteriorate over the length of time and use of the cleaner and depending on the chemical balance of the water they will need to be replaced at some point

Four selectable flow orifice settings for adjustable cleaning intensity

and lid to lock in height and orientation

If your pool has existing 6" or 10" Pentair niches containing incandescent or first-generation LED lighting

✅ Plug-and-Play Installation – Factory-cut lengths with secure connectors for easy setup

Pleatco Ultra-A1-PAK4 Cartridge – Fits C4000 Series & Replaces CX580XRE | ULTRA-A1-PAK4 Waterway These parts can wear andPleatco Ultra A1 PAK4 Cartridge Fits Hayward C4000C4030 and C4500 series; 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,