View cart “591-41 Packing Screw” has been added to your cart. 591-20 Needle$19.95 591-20 Needle quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Fluid Needle Assembly Related products 591-32 Air Connector $9.95 Add to cart 591-42 Retaining Ring $3.50 Add to cart 591-40 Packing $3.50 Add to cart 591-44 Stud $3.50 Add to cart