The Aladdin 12801 R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters:
The Aladdin 12801 Comp. Replacement Pool & Spa Filter has an outer diameter of 4 15/16 inches, with a length of 14 7/8 inches. This Aladdin pool filter has an open top and bottom with both having diameters of 2 1/8 inches. This Aladdin 12801 filter contains 30 square feet of filter media.