“591-23 Replacement Fluid Needle Spring” 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 591-24A Replacement Needle Bushing Assembly $29.95 Add to cart 591-07 Platen $14.50 Add to cart 591-39 Fluid Connector $9.95 Add to cart 1 TB-591 Spray Gun $175.00 Add to cart