Pentair Clean and Clear 520 Plus Filter Cartridge - 130 Square Feet pool-dimensions_18x42 This is a Tank O-Ring

This is a Tank O-Ring for Pentair Sta-Rite System:3 Modular SD Series D

Made of reinforced thermoplastic material and engineered for maximum flow

deicing salts and abrasion

Our ladder tread width measurements are from center to center

Severe shock loads and stress are absorbed by the valve body

Pentair Clean and Clear 520 Plus Filter Cartridge - 130 Square Feet pool-dimensions_18x42 This is a Tank O-RingThe Pentair Filter Cartridge replacement has a media filtration area of 130 square feet and is designed for Clean and Clear Plus 520 Square Foot Filter. This filter requires four (4) 130 square foot filter cartridges. Pentair reusable cartridge filter elements are made of a superior reinforced polyester material. Pentair elements provide a high degree of water clarity and longer filter cycles. To maintain your pool water cleanliness and clarity,