Spray with the Reverse-A-Clean (RAC) 5 for a precision spray with excellent fan pattern life and a high quality finish. For use with residential and commercial applications. Breakdown of Spray Tip Numbers: The first digit is half of the fan width, the "5" in "517" equals a 10 inch spray fan width (5 x 2 = 10) The last two digits are the size of the tip opening in thousandths of an inch, the "17" in "517" means the tip hole size is . 017 inch. Refer to you paint product Technical Data Sheet for Recommended tip size and PSI. Compatible with Orange Tip Guard (Part # 243161) Widely Used Tip A widely used reversible spray tip in the market (Black Handle) Large Selection of Tip Sizing A tip size for most jobs Solvent seal available Large Selection of Tip Sizing A tip size for most jobs Easy to Identify Tip Size Large raised tip size numbers are always legible – even when covered with paint Solvent Seal Available A solvent seal is available for when extremely hot solvents are being used