Ged rid of unhygienic debris and sediments from your pool with the Unicel C-7660 Spa Replacement Cartridge Filter. You can replace your worn-out filter with this 1 for uninterrupted pool cleaning and maintenance. It helps to keep your pool clean and hygienic for use on all occasions. With a pleat count of 146, it offers improved filtering capacity and reduced filter pressure drop. It is made from durable and sturdy polyester filter media that is specially designed for pools, offering optimum dirt catching ability. This cartridge extends its compatibility to Endless Pools, Pentair Pool Prod 172810, Pentair Pool Prod R173298, Pentair Pool Prod Pac Fab Replacements 172810, Pentair Pool Prod Pac Fab Replacements 174983, Pentair Pool Prod Pac Fab Replacements 174983 and 174985 and Wet Institute 32050203 filter system.