“591-31A Air Inlet Assy.” has been added to your cart. View cart 591-43 Trigger$6.50 591-43 Trigger quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Trigger Related products 591-39 Fluid Connector $9.95 Add to cart 591-41 Packing Screw $2.50 Add to cart 591-02 Air Cap $29.95 Add to cart 591-24A Replacement Needle Bushing Assembly $29.95 Add to cart