View cart “591-26A Air Valve Assy.” has been added to your cart. 591-02 Air Cap$29.95 591-02 Air Cap quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Air Cap Related products 591-01 Retaining Ring $14.95 Add to cart 591-23 Replacement Fluid Needle Spring $5.95 Add to cart 591-44 Stud $3.50 Add to cart 591-20 Needle $19.95 Add to cart