Gimars 4 Pack Water Filter Replacement for W4-S1 Cat Water Fountain Filters Indoor

【Good Applicability 】Designed for W4-S1 water fountains, also compatible with similar models. Filter dimensions: 12 x 5.5cm; Pre-filter sponge: 3.2 x 2.5 cm, Confirm compatibility before purchase. 【Cat Water Fountain Filters】 Made with premium cotton layers, activated carbon, and epoxy resin to filter hair, debris, and heavy metals. Provides clean, safe water for your pet’s health. 【What You Get】 Includes 4 cat fountain replacement filters and 4 sponges. Each filter lasts up to 2 weeks, The 4-pack provides about 2 months of clean water for your pet. 【Usage Tips】 Rinse the filter for 3 minutes and soak it for 5 minutes before first use to activate its full filtration capacity. 【Easy to Replace】 Gimars pet water fountain filters are easy to replace-simply open the lid, insert the filter. No complicated steps required.