Pleatco Ultra-A1-PAK4 Cartridge – Fits C4000 Series & Replaces CX580XRE | ULTRA-A1-PAK4 VGreen Variable Speed Motor Mytilus FMY150

Mytilus FMY150

Be careful not to overtighten — snug plus a quarter turn is often enough

Making this a genuine OEM part

debris-pass-through gear design

or potential issues

Pleatco Ultra-A1-PAK4 Cartridge – Fits C4000 Series & Replaces CX580XRE | ULTRA-A1-PAK4 VGreen Variable Speed Motor Mytilus FMY150Pleatco 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,