View cart “591-08 Side Port Control” has been added to your cart. 591-14A Air Bushing Assy.$36.95 591-14A Air Bushing Assy. quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Air Bushing Assembly Related products 591-09 O Ring $4.50 Add to cart 591-41 Packing Screw $2.50 Add to cart 591-24A Replacement Needle Bushing Assembly $29.95 Add to cart 591-01 Retaining Ring $14.95 Add to cart