“591-01 Retaining Ring” has been added to your cart. View 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 591-20 Needle $19.95 Add to cart 591-31A Air Inlet Assy. $9.95 Add to cart 591-14A Air Bushing Assy. $36.95 Add to cart