The Water Fountain Filters Adopts High-Grade Pp Cotton Mesh To Filter Out Pet’S Hairs And Food Debris And Premium Cocoanut Shell Active Carbon To Remove Odors And Impurities Effectively. In General, Replace The Filter Every 2 To 4 Weeks Is Recommended And It Economically Comes With 4Pcs For You To Keep The Water Always Refresh. It Fits For 1.6L/2.4L Automatic Pet Water Fountain (Model Gpct1677/Gpct1893) Which You Can Find I The Store. Great Filtering Quality: Adopting High-Grade Pp Cotton Mesh To Filter Out Pet’S Hairs And Food Debris And Premium Cocoanut Shell Active Carbon To Remove Chlorine, Odors And Impurities Effectively. Filter Replacement Frequency: Replace The Filter Every 2 To 4 Weeks Is Recommended And It Economically Comes With 4Pcs For You To Keep The Water Always Refresh. Compatible Water Fountain Type: Fit For 1.6L Automatic Pet Water Fountain (Model Gpct1677) And 2.4L Automatic Pet Water Fountain (Model Gpct1893) Sold I The Online Store. Easy To Use: Just Take Out The Original Filter Of The Water Fountain And Place The New Filter Into The Same Place. A Simple Operation To Ensure A Healthy Drinking Of Your Pets Warm Prompt: It Is Normal That Existing Active Carbon Dust In The Filter And To Help Remove It, Please Rinse The Filter With Water Thoroughly Before Use. Brand: Fresh Fab Finds Product Type: Water Fountain Replacement Filter Material: Pp Cotton + Active Carbon Quantity: 4Pcs/Set Item Size (One Pcs): 12.8Cm X 12.8Cm X 0.8Cm/5.04In X 5.04In X 0.31In (L X W X H) Item Weight (One Pcs): 18G/0.04Lbs Package Size: 14X13.5X4.5Cm/5.51X5.31X1.77In Package Weight: 81G/0.17Lbs 4 X Water Fountain Replacement Filters Imported