View cart “591-02 Air Cap” 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 591-14A Air Bushing Assy. $36.95 Add to cart 591-23 Replacement Fluid Needle Spring $5.95 Add to cart 591-20 Needle $19.95 Add to cart 591-02 Air Cap $29.95 Add to cart