View cart “591-26A Air Valve Assy.” has been added to your cart. 591-05 Air Ring$5.50 591-05 Air Ring quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Air Ring Related products 591-23 Replacement Fluid Needle Spring $5.95 Add to cart 591-26A Air Valve Assy. $19.95 Add to cart 591-08 Side Port Control $12.95 Add to cart 591-31A Air Inlet Assy. $9.95 Add to cart