Compatibilitythis Replacement Filter Kit Is Compatible With The Petlibro Dockstream Cat Water Dispenser, Please Check Your Water Dispenser Model Before Purchasing. Applicable Model: Plwf105 / Plwf115 / Plwf005 Recommendations For Use: To Prevent Activated Carbon Dust From Dislodging Into The Water, Soak The Cat Fountain Filter In Water For 5 Minutes Before Use, Then Rinse Thoroughly With Running Water For 30 Seconds Before Use.

It Is Recommended To Change The Filter Once Every 1 To 2 Weeks In Summer And 2 To 4 Weeks In Winter. If More Than One Cat Uses The Fountain, The Filter Needs To Be Changed More Frequently.