Perfect Fit: Dog water filter is compatible with Petlibro water fountain PLWF008, 2.1Gal/8L capsule dog water bowl dispenser for medium to large dogs Premium Material: Fiting for Petlibro dog water fountain filters replacement protects pumps and extends the life of pet fountain. Resins adsorb heavy metals; non-woven fabric & sponge filter fur and debris; activated carbon eliminates odors; silver ions block harmful particles 5-Layer Filtration: Compatible with Petlibro filter replacement works for more effective filtration and longer-lasting use and keeps the water in your pet drinker bowl fresh and clean. Pure water makes cat & dog happier and healthier when drinking Better Performance: You will get 8pcs activated carbon dog water filter & 8pcs sponge filters compatible with Petlibro capsule dog fountain filter in total. Soak the filter for 5 minutes and rinse for 30 seconds before use Up to 4-Month Use: Compatible with Petlibro water fountain filters should be changed for 1 to 2 weeks in summer and 2 to 4 weeks in winter to maintain water freshness.(depending on the size and number of pet using the fountain) Keep Your Pet Healthy: This dog water bowl filter replacement, compatible with petlibro replacement filters for capsule dog fountain PLWF008, Individual polybagged and sealed to maintain the high quality of pet fountain filters for dog water dispenser, providing a high-quality life for your pet Compatible with Petlibro water fountain filter & Compatible with Petlibro filter replacement plwf008. Brand names and/or trademarks are used here only for product description or identification of devices and/or device types. Errors reserved Perfect Fit: Dog water filter is compatible with Petlibro water fountain PLWF008, 2.1Gal/8L capsule dog water bowl dispenser for medium to large dogs