Darlly Cartridge [50 sq ft Pair, 2-1/8" OD Top x 2-1/8" OD Bottom x 4-15/16" dia x 6-5/8" L] (40505-2PK) thermproducts heating and filtration performance usually

heating and filtration performance usually suffers as well

Useful for mixed threaded and slip-plumbed systems

The Hayward bottom-mount pressure gauge is designed for compatible filter and circulation applications where system pressure needs to be monitored

A complete skimmer is useful because it restores the main surface collection point of the circulation system rather than only addressing one worn internal component

Darlly Cartridge [50 sq ft Pair, 2-1/8" OD Top x 2-1/8" OD Bottom x 4-15/16" dia x 6-5/8" L] (40505-2PK) thermproducts heating and filtration performance usuallyThe Darlly 40505 2PK filter cartridge set is designed for compatible filtration systems that use a paired 50 square foot cartridge configuration. Each cartridge features 2 1 8 inch top and bottom openings, a 4 15 16 inch diameter, and a 6 5 8 inch length, making this two pack especially useful for systems built around dual compact elements. Paired cartridge systems require the right size on both elements to maintain proper balance and fit inside the