Unicel C-6900-4 Quad DE Filter Cartridge Set 25 Sq Ft Blue Square helping prevent these common system

helping prevent these common system issues

Reduced filtration efficiency

confirm your cleaner model and compare the A49 kit contents to your cleaner’s parts diagram

and the new gasket is installed evenly around the lens before reassembly

Unicel C-6900-4 Quad DE Filter Cartridge Set 25 Sq Ft Blue Square helping prevent these common systemThe C 6900 4 Quad D. E. Replacement Cartridge Set is a complete 4 pack of 25 square foot cartridges (100 sq. ft. total) designed to restore proper filtration performance in Pentair Quad D. E. 100 and Hayward DE250E pool filter systems. These cartridges act as the structural filtration elements that are coated with D. E. powder or D. E. alternatives to deliver exceptionally fine filtration. Unlike standard cartridge filters, Quad D. E. systems rely on