View cart “591-44 Stud” has been added to your cart. 591-31A Air Inlet Assy.$9.95 591-31A Air Inlet Assy. quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Air Inlet Assembly Related products 591-20 Needle $19.95 Add to cart 591-43 Trigger $6.50 Add to cart 591-07 Platen $14.50 Add to cart 591-14A Air Bushing Assy. $36.95 Add to cart