“591-24A Replacement Needle Bushing Assembly” 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 591-40 Packing $3.50 Add to cart 591-41 Packing Screw $2.50 Add to cart 591-09 O Ring $4.50 Add to cart