“591-06 Lock Screw” has been added to your cart. View cart 591-09 O Ring$4.50 591-09 O Ring quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement “O” Ring Related products 591-23 Replacement Fluid Needle Spring $5.95 Add to cart 591-39 Fluid Connector $9.95 Add to cart 591-26A Air Valve Assy. $19.95 Add to cart 591-41 Packing Screw $2.50 Add to cart