Unicel C-7466 | 65 sq ft Sundance Spa Filter Cartridge Type_Algaecides That's exactly why a factory-spec

That's exactly why a factory-spec cartridge matters here: the right filtration area and the right flow characteristics are what keep your filtering efficient

Pro Tip: A 2-inch thread isn't always a 2-inch thread — check the standard

The switch automatically resets to OFF

Then confirm with the threads: coarse and straight-sided is SAE

Removable silicone head is dishwasher safe

Unicel C-7466 | 65 sq ft Sundance Spa Filter Cartridge Type_Algaecides That's exactly why a factory-specThe Unicel C 7466 is a 65 square foot replacement cartridge for Sundance and Sweetwater spas, replacing OEM part number 6540 481. It carries 164 pleats across a wide 7 1 2" body, and it is distinguished by a closed castle top a sealed end cap with a crenellated rim, notched like the battlements on a castle wall, which is where the name comes from. That closed top is not decoration. It means water has exactly one way out of this cartridge: down through