6 x Bestway 58012 Pool Filter Cartridge SIZE III for Swimming Pool PUMP TYPE 3 4260340559262 | eBay
6 Pieces Of 58012 Bestway Water Filter Cartridge(iii) For Swimming Pool Filter Pumps 58384,58387 58389 & 58390 Pool Filter Core - Pool Accessories - AliExpress
Bestway 4.2-in 58012E-BW 14-sq ft Pool Cartridge Filter 2-Pack in the Pool Cartridge Filters department at Lowes.com