View cart “591-24A Replacement Needle Bushing Assembly” has been added to your cart. 591-08 Side Port Control$12.95 591-08 Side Port Control quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Side Port Control Related products 591-02 Air Cap $29.95 Add to cart 591-24A Replacement Needle Bushing Assembly $29.95 Add to cart 591-40 Packing $3.50 Add to cart 591-26A Air Valve Assy. $19.95 Add to cart