Jetflow products are built in the USA with medical grade high density plastics. We have revised over the years and pushed the design in function and convenience. The latest 2018 model with built in Jetflow valve inside the manifold body is our latest creation. We are happy to provide lifetime warranty on all components except bite valves. . Enjoy a lifetime warranty on all parts except the bite valve. Reach us at jetflow.com or speak to our experts via phone 800.660.5001.