Feather butterfly 1Pack R0523000 Filter Drain Cap Assembly Replacement for Zodiac and Jandy Pool and Spa

["R0523000 Filter Drain Cap Assembly Replacement for Zodiac and Jandy Pool and Spa DE and Cartridge Filters & Aquapure Salt Cell Cleaning Cap","Compatibility: Designed to work with DEV48, DEV60, DEL48, DEL60, CS100, CS150, CS200, CS250, CL340, CL460, CL580, CV340, CV460 and CV580 Filters. This will also work as a cap for the Jandy Aqua pure salt cell. Designed to be used to help with the cell cleaning process.","Assembly (On Filter): For installation on a filter, simply unscrew the old drain cap and screw this new heavy duty Swimables drain cap in its place. It is recommended to lubricate the orings slightly before installation.","Assembly (On Salt Cell): For installation on the Aquapure Salt Cell, simply attached the drain plug to the bottom portion of the salt cell. Add 4 parts water to 1 part acid and let the cell sit for 20-25 minutes. Then pour out the water. Don't forget to add acid to water, not water to acid.","Durability: This upgraded design is built thicker than the original and will seal under high pressure."]