[Filter Cartridge Type VI] Size: 4.2 x 3.1 inches.replacement cartridge for Type VI/90352E pool filters.[Premium Material]The type VI filters are made of high quality sponge,can be washable,re-used and can be use long time. The sponges are made of environmentally friendly material,it will not pollute the water as well as the environment.[Effective to clean]The sponge Type VI filter cleaner has advantages of low cost and long service life; and the foam filter sponge can be cleaned many times and reused, which can reduce your maintenance costs.[Save time and effort] Changing the pool filter cartridge is part of regular maintenance for pool,this reusable washable hot tub cleaner tool is much easier to clean and maintain than traditional paper filters,save you lots of time and effort.Colour:blueMaterial:spongePackage Contents:4 x Pool sponge filterOnly the above package content, other products are not included.Note: Light 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.