591-23 Replacement Fluid Needle Spring$5.95 591-23 Replacement Fluid Needle Spring quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Fluid Needle Spring Related products 591-26A Air Valve Assy. $19.95 Add to cart 591-31A Air Inlet Assy. $9.95 Add to cart 591-44 Stud $3.50 Add to cart 591-43 Trigger $6.50 Add to cart