View cart “1 TB-591 Spray Gun” has been added to your cart. 500-07 Air Coupling$7.95 500-07 Air Coupling quantity Add to cart Category: Adhesive Applicators Description Description Replacement Air Coupling for Regulator hook up TB500 and TB1000 Related products 500-HOSE Twin Hose $90.00 Add to cart 1000-08 Adhesive Connector Hose $25.00 Add to cart 1000-11 Street Tee $6.95 Add to cart 1000-12 Twin Coil Hose $145.00 Add to cart