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This kit is used to replace the internal needle and packings for Graco's SG20 and SGPro airless paint sprayer guns. Included in this kit is the needle, diffuser, a brass o-ring and a small packing nut. This gun repair kit is often needed when the gun starts to spit, there is a loss of pressure in the gun, or when a piece of dirt or debris may enter the gun.
For use with these model spray guns