“591-05 Air Ring” has been added to your cart. View 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 591-01-1 Air Cap Clip $2.95 Add to cart 591-02 Air Cap $29.95 Add to cart 591-43 Trigger $6.50 Add to cart 591-03 Fluid Nozzle $29.95 Add to cart