View cart “591-24A Replacement Needle Bushing Assembly” 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 591-41 Packing Screw $2.50 Add to cart 591-43 Trigger $6.50 Add to cart 591-01 Retaining Ring $14.95 Add to cart 591-20 Needle $19.95 Add to cart