Cunina 6 Set Cat Water Fountain Filters & Sponges for 135 fl oz/4L Wilreless Cats Drinking Water Fountain, Cat Fountain Pump Replacement, YPD-C004P YPD-C004S Pet Fountain Replacement Filter

Perfect Compatibility：Thecat filters for wireless cat water fountain are ONLY compatible with 135 fl oz/4L wireless ultra quiet cat drinking fountain models YPD-C004P, YPD-C004S. (Filter: 3.78 x 2.28 x 0.39in | Sponge: 1.37 x 1.18 x 0.35in). Please check the size

5 - Layer Vertical Filtration：1.Primary sponge filtering hair and detritus. 2.Ion resin removes heavy metal ions and softens water quality. 3.Activated carbon eliminates offensive odors. 4.The non-woven fabric captures impurities and cat hair. 5.The built-in pump sponge further filters debris to prevent blockages and damage

Replace The Filter Regularly：Every drop of water is filtered through multi-layer filtration to remove all contaminants and offer oxygen-enriched, better-tasting water. To preserve the filtering effect, It's recommended to replace the pet fountain filter replacement 1-2 weeks in summer and 2-4 weeks in winter. If you have multiple pets, please clean the fountain and change the filter more often

Premium 6 Set：Package includes 6-pack of premium cat filters for water fountain & 6-pack Primary sponge & 6-pack Replacement Pre-filter Sponges. Each set is individually packaged and sealed to maintain high quality. Please do not unpack the individual packets before use or it will early oxidation. Please store the replacement filters in a dry environment

Optimal Usage：Please soak the filter for 5 minutes and rinse for 30 seconds before using to prevent the activated carbon dust, which won't harm your pets, from shedding into the water

Certified Materials：All materials of the filters for stainless steel cat water fountain are certified by SGS, CE, and RoHS to ensure the highest quality and safety for your pet

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