【Perfect Natural Material】It is made of 100% cotton and superior quality husk. consisting of activated carbon, ion exchange resin, and non-woven fabric.

【Wide Compatible】This cat water fountain filter is compatible with stainless steel 67 oz/2L, 101 oz/3L, 108 oz/3.2L and 135 oz/4.0L pet water fountains. Compatible with most stainless steel pet

【Water Purely】Together, they effectively filter out impurities, such as hair and heavy metals, while improving the taste and quality of the water. This helps to keep your pets healthy and hydrated by

【Small Size and Easy to Clean】Cat fountain filter measures 2.99 x 1.69 inches, sponge measures 4.3x 1.1 inches.

【Service Life】Each box contains 10 packs of pet fountain replacement filters and 10 sponges. we recommend that you clean it once a week and change the cat water fountain filter 1 to 2 times a month.