Drinkwell PetSafe 3 Pack of Replacement Foam Filter for 360 Lotus Pet Fountain, 2 Filters Per Pack

The Drinkwell foam pre-filters help keep the water cleaner by catching large particles and debris before they reach the pump, enhancing overall filtration. Pre-filters extend the life of your pump and help maintain your fountain's flow rate in between cleanings. The foam filter serves as the primary filter for the Drinkwell Lotus fountain and pre-filter for the Drinkwell 360 stainless fountain.