PERFECT COMPATIBILITY: This pet fountain filter replacement set is compatible with Petsafe Drinkwell Avalon, Pagoda, Seascape and Sedona Water Bowl, 1/2, 1, 2 Gallon pet fountains, Greekside, Butterfly pet fountains 12+6 PACKS IN ONE SET: You will get 18pcs compatible with drinkwell pet fountain filters, including 12 pieces of replacement carbon filters and 6 pieces of foam pre filters. It is recommended to change the carbon filter every 2 to 4 weeks and the foam pre filter every 1 to 2 months (depending on your pets’ hair). Give your pet a half to one year supply of cat water fountain filter fit for petsafe water fountains FRESH WATER & PUMP PROTECTION: The compatible with avalon water filter replacement effectively impurities, filter hair, chlorine, heavy metals, and odors, keeping your pet's water clean, fresh and tasty. Compatible with petsafe drinkwell replacement carbon filters and foam filters help prolong the life of your water fountain pump, providing a high-quality life for your pet KEEP YOUR PET HEALTHY: Water fountain filters for petsafe drinkwell fountain will make your pet healthier because you’re keeping your cat’s and dog’s drinking water the cleanest it can possibly be. Maybe your pet will like drinking water more with compatible drinkwell replacement carbon filters, and healthy and pure water can make them happier and healthier when they’re drinking EASY TO REPLACE: Compatible with pet safe water fountain filter replacement can be easily removed for pump cleanings and foam filter replacement; filters should be replaced every 2 to 4 weeks to extend the life of your compatible with pet safe water fountain and pump. (Due to squeezing, the foam fountain filters may be deformed. After cleaning, it can be used normally after waiting for its shape to be restored *Brand names and/or trademarks are used here only for product description or identification of devices and/or device types. Errors reserved Pet Water Fountain Replacement Filters, Fountain Filters Replacement compatible with PetSafe Drinkwell Avalon, Pagoda, 2 Gallon, Sedona and Seascape Fountains , Foam Pre-Filter Compatible with Drinkwell Ceramic Lotus PWW00-13709 DMLT-CER, Sedona PWW00-15417, Pagoda PWW00-13907 PWW00-14289 Pet Fountain; PAC00-13711 / PAC00-13194 Replacement