Guardian Pool Spa Filter Replaces Pleatco PCS75N, Unicel C-8475, Filbur FC-3320 Coleman, Maax Spas Filter Replaces Pleatco: PCS75N | Unicel: C-8475 | Filbur: FC-3320 Length: 13", Diameter: 8", Top opening: 2-1/8", Bottom opening: 2" Filter Area: 75 sq ft Filter Material: REEMAY(3 oz/yard) Alternative filter names: 100594, 3301-2262, 17-175-1207, APCC7233, 17513, PCS 75N, PCS75-N Antimicrobil end caps