AP435 Intake Filter Element Polyester 3760527-0001 Joy ReplacementReplacement Intake Filter for 3760527 0001 This AP435 is a top quality polyester air compressor intake filter element with pre filter. This filter is made with a polyester element surrounded by galvanized mesh screen on the inside. Also included is a pre filter on the outside that can be removed and cleaned for a longer filter life. Features Surrounded by galvanized mesh screen on the inside Can be removed and cleaned for a longer filter life 5 3 4"