Graco 218133 Gun Filter Assembly for Airless Paint Spray Guns with 100 Mesh For use with Graco original contractor guns, SG2, and SG3 spray guns Genuine Graco spray gun filter 100-mesh filters for use with airless paint sprayer tip orifice sizes .011-Inch to .015-Inch Filters out large unwanted particles from the spray material Essential when spraying low quality paint