Hose4Pros&trade; Double hose splitter from Premium Quality: Inner metal body is covered with weather resistant plastic for protection and reliability There are two On-off Valves for two connectors, just twist switch by yourself for bidirectional flow. Make full use of every faucet and save water. LARGE valve handles - easy to use for those with arthritis. The size of faucet splitter is 3/4 (US standard); it can match any American spigot.