The Pentair Unicel WC108-58S2X (UHD-SR100) replacement filter cartridge delivers professional-grade filtration performance for pool contractors servicing Sta-Rite Posi-Flo II systems. With 100 square feet of filtration area and 195 precision pleats, this cartridge ensures optimal water clarity and extended service intervals for your commercial and residential pool maintenance routes.

Commercial Service Benefits

Built with 100% polyester Reemay material, this filter cartridge offers superior dirt-holding capacity and chemical resistance, reducing callback visits and extending service intervals. The sharp, uniform pleat folds maximize water flow while minimizing pressure loss, helping contractors maintain optimal system performance and reduce energy costs for clients.

Why Pool Contractors Choose MT Pools

MT Pools understands the demands of pool service professionals. Our wholesale pricing structure protects your profit margins while our reliable inventory ensures you have the replacement cartridges needed to keep client pools running smoothly. With superior customer service and daily recurring customer support, we're your trusted B2B partner.

Frequently Asked Questions

Order Today

Stock up on professional-grade Pentair Unicel filter cartridges and keep your service routes running efficiently. Contact MT Pools for bulk pricing and expert technical support that helps grow your pool service business.