“591-44 Stud” has been added to your cart. View cart 🔍 591-08 Side Port Control$12.95 591-08 Side Port Control quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Side Port Control Related products 591-41 Packing Screw $2.50 Add to cart 591-23 Replacement Fluid Needle Spring $5.95 Add to cart 591-26A Air Valve Assy. $19.95 Add to cart 591-07 Platen $14.50 Add to cart