Compatibility: For Tomxcute 3.2 liter fountains, for Giothoun 67oz/2L stainless steel pet fountain, for Petlibro 67oz/2L stainless steel water fountain, for SOOFPET 3.2L/108oz water fountain, for DOOOB 3.2L/108oz water fountain and WoPET compatible, for Bento, 108oz 3.2 liter and 67oz/2L cat fountain filter stainless steel compatible. Product dimensions: Filter element: 7.5 x 4.5 cm, pre-filter: Outer diameter: 8.5 cm, Inner diameter: 5.8 cm. 30% MORE RAW MATERIAL: We add 30% more raw material to each filter, so you can give your pets a wider filtering experience and healthier water to drink. Four filters: The pet water dispenser filter is made of high-density cotton and non-woven fabric, ebony sponge and activated carbon. The material is soft and reliable and provides your pet with better water purification. The filter sponge filters hair and dirt, removes bacteria and odors, making the water quality softer and providing pets with healthier water to drink. Note: Rinse the filter sponge before use. To prevent activated carbon from falling into the water, soak it for five minutes and replace it every two weeks in summer and every three weeks in winter. Easy installation: The pet drinking fountain filter can be easily removed to clean the pump and replace the foam filter. Sufficient set: You get 12 filters and 12 pre-filters, buy it once and you can use it for about 6 months. The replacement filter size is 7.5 * 4.5 cm. The inner diameter of the sponge is 5.8 cm, please measure the size of the filter housing before ordering. The replacement filter can effectively isolate impurities such as hair in the water, keep the drinking fountain running safely, improve water quality and protect pet safety. Change carbon filter every four weeks. Change sponge filter every two months. Soak the filter in a clean container for 5 minutes.