Porous Plastic Style Fuel Filter for 3/16" I.D. Fuel Line Husqvarna 503-4432-01 Ship from CA, Fast delivery available Replace P/N: 503443201 506264111 High quality aftermarket fuel filter for Husqvarna chainsaw Fits 3/16" I.D. fuel line, Husqvarna chainsaw 36 40 41 42 45 50 51 61 232 394 Pro and etc Package include 5pcs of fuel filters