View cart “591-08 Side Port Control” has been added to your cart. 591-09 O Ring$4.50 591-09 O Ring quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement “O” Ring Related products 591-43 Trigger $6.50 Add to cart 591-05 Air Ring $5.50 Add to cart 591-07 Platen $14.50 Add to cart 591-40 Packing $3.50 Add to cart