S7D75/S8D110 Compatible Filter Grid Element Center Port - 18 x 15-3/16 Inches state_Georgia and is designed to warn

and is designed to warn patrons that children under age 16 must be supervised and adults should not swim alone

it can handle pools up to 1

A bright LCD display shows ORP readings

The Service-21 units mount securely to any trailer or 2 inch trailer hitch receiver for safe transport from pool-to-pool

S7D75/S8D110 Compatible Filter Grid Element Center Port - 18 x 15-3/16 Inches state_Georgia and is designed to warnThis is a Filter Grid Element with Center Port measuring 18 x 15 3 16 inches. It is designed to replace Pentair 23900 1174 which is used on Sta Rite System: 3 S8D110, S7D75 D. E. Filters. Two filter elements are required. Our generic OEM grids are injection molded from 100% virgin, high impact styrene then covered with multi filament polypropylene fabric. Each grid has been engineered with subtle design improvements over OEM units.