“591-26A Air Valve Assy.” has been added to your cart. View 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 591-39 Fluid Connector $9.95 Add to cart 591-20 Needle $19.95 Add to cart 591-32 Air Connector $9.95 Add to cart 591-09 O Ring $4.50 Add to cart