Graco 288747 InstaClean pump filter element, part number 288747, a replacement intake filter for the InstaClean filter system on Graco ProX and Magnum airless paint sprayers. The element measures 1.875 in high by 0.375 in wide. For use with ProX17 Stand, ProX17 Cart, ProX19 Stand, ProX19 Cart, ProX21 Stand, ProX21 Cart, Magnum A60 ProPlus, Magnum A80 ProPlus, Magnum ProS19 ProPlus, Magnum ProS21 ProPlus. The InstaClean filter screens debris on the pump intake side; it is cleaned or replaced as a routine maintenance item.