View cart “591-20 Needle” 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 591-09 O Ring $4.50 Add to cart 591-05 Air Ring $5.50 Add to cart 591-02 Air Cap $29.95 Add to cart 591-32 Air Connector $9.95 Add to cart