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 A complete skimmer is useful

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

Two-speed pumps can be especially practical in spa and bath environments where varying output levels are beneficial

5 THP 2004 and newer related setups

AquaSunOzone ozone installation kit

Helps restore intended topside user control

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 A complete skimmer is usefulThe 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