View cart “591-26A Air Valve Assy.” has been added to your cart. 591-24A Replacement Needle Bushing Assembly$29.95 591-24A Replacement Needle Bushing Assembly quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Needle Bushing Assembly Related products 591-08 Side Port Control $12.95 Add to cart 591-01-1 Air Cap Clip $2.95 Add to cart 591-23 Replacement Fluid Needle Spring $5.95 Add to cart 591-07 Platen $14.50 Add to cart