The Centek exhaust non return valve is made from the same fibreglass and fire retardant resins used to produce Vernatube, the UL listed tubing line.
Centek check valve is designed to be installed in the wet exhaust hose line to help retard the ingress of water surge from the transom. These fittings are lightweight, strong, non-corroding, and durable. This check valve is installed easily and is compatible with tubing and approved marine rubber exhaust hoses.
