“591-08 Side Port Control” has been added to your cart. View 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 591-31A Air Inlet Assy. $9.95 Add to cart 591-06 Lock Screw $12.50 Add to cart 591-07 Platen $14.50 Add to cart 591-02 Air Cap $29.95 Add to cart