“591-01 Retaining Ring” 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 591-20 Needle $19.95 Add to cart 591-08 Side Port Control $12.95 Add to cart 591-02 Air Cap $29.95 Add to cart 591-44 Stud $3.50 Add to cart