View cart “591-43 Trigger” 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 591-14A Air Bushing Assy. $36.95 Add to cart 591-42 Retaining Ring $3.50 Add to cart 591-23 Replacement Fluid Needle Spring $5.95 Add to cart 591-06 Lock Screw $12.50 Add to cart