View cart “591-06 Lock Screw” has been added to your cart. 591-40 Packing$3.50 591-40 Packing quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Needle Packing Related products 591-26A Air Valve Assy. $19.95 Add to cart 591-14A Air Bushing Assy. $36.95 Add to cart 591-32 Air Connector $9.95 Add to cart 591-08 Side Port Control $12.95 Add to cart