Compatible with filter pump models 603, 604/G, 635T, 636T/G, 637R, 638/G, CS7111, CS7221/72321, EC07111, EC07221/7231 or Krystal Clear filter pump models 02 and 12R. Customized for Poly Group pool filters cartridges SFS 1000, SFS 1500, SFS 2000, SFX-1000, SFX-1500, RP-800, RP-1000, RP-2000, RX-1000, RX-1500, CP-2000.Replacement part numbers are 59900E and 29000E. Compatible with 500, 530, 800, 1000 and 1500 GPH pool filter pumps. Pool filters item numbers are 28603EG, 28637EG, 28635EG, 28671EG, 58603E, 58604E, 56635E, 56636E, 56637E, 56638E and 58623.ULTIMATE FILTRATION: The uniformity and high-performance triple-layer fabric capture and releases stains more easily, allowing the for Housmile filter to capture more contaminants than ordinary filters. The pool filter's powerful propulsive flow effectively removes hair, leaves, dust, sediment, sand and more.Dimension of each filter: 8 x 4.3 x 4.3(inch), 20.3 x 10.9 x 10.9(cm). It is recommended that you change the filter cartridge every 2 weeks to maximize the performance of your spa.SPARKLING CLEAN POOL: Provide yourself rest and relaxation in a sparkling clean pool by replacing the pool filter cartridge. The pool filter cartridge provides you with the bottom of the pool visible to the naked eye.Color: blue+whiteMaterial: PET+ non-woven fabricPackage Contents:12 x Pool FiltersOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.