View cart “591-40 Packing” has been added to your cart. 591-23 Replacement Fluid Needle Spring$5.95 591-23 Replacement Fluid Needle Spring quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Fluid Needle Spring Related products 591-06 Lock Screw $12.50 Add to cart 591-32 Air Connector $9.95 Add to cart 591-31A Air Inlet Assy. $9.95 Add to cart 1 TB-591 Spray Gun $175.00 Add to cart