The Vacuum Breaker Hose 3/8” is compatible with any vacuum breaker with a 3/8” fitting, and is designed to connect the vacuum breaker to the water supply fixture. This stainless steel hose has a 3/8" connection on both ends and is needed to complete the installation of the vacuum breaker on any salon shampoo sink. The vacuum breaker is used to protect the fresh water system by keeping contaminated water from mixing with the municipal water supply. With a durable construction, the Vacuum Breaker Hose 3/8” provides lasting, dependable results.