Petsafe Replacement Charcoal Filter For Drinkwell Ceramic Pet Water Fountain Avalon And Pagoda, 7.5 - 3.7 - 1.8 Liters, Stream/Seaside, Natural And SaReplacement Charcoal Filter For Water Fountain Drinkwell Ceramic Pet Water Avalon And Pagoda (Pack Of 4)This Replacement Charcoal Filter For Pet Fountain Drinkwell Ceramic Avalon & Pagoda Pet Water (4 Pack) Works To Remove Bad Taste And Odor From Water. Water Is More Attractive To Your Pet And Therefore Helps To Maintain Good Hydration.Compatible With:Drinkwell Avalon And Pagoda Fountains From Petsafe .Important Details&Amp;Amp;Amp; ;;It Is Recommended Rinse The Carbon Filter Thoroughly With Water. Cold Water To Flush Out Any Buildup Of Loose Carbon Dust Trapped In The System.It Is Recommended To Replace The Spare Carbon Filter Every 2 To 4 Years. 4 Weeks Approximately.For Further Information, Please Contact Petsafe Customer Service On 00 800 1818 2020.