View cart “591-08 Side Port Control” has been added to your cart. 591-01 Retaining Ring$14.95 591-01 Retaining Ring quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Retaining Ring Related products 591-14A Air Bushing Assy. $36.95 Add to cart 591-02 Air Cap $29.95 Add to cart 1 TB-591 Spray Gun $175.00 Add to cart 591-05 Air Ring $5.50 Add to cart