【Pipe Compatibility】Equipped with 1/2 inch sweat inlet x 3/4 inch Male Hose Thread(MHT) Outlet Connections. 【Ball Valve】Lead Free 1/4-Turn Hot and Cold Brass Ball Valve with Stainless Steel Water Hammer Arrestor Installed.This material ensures long-lasting performance and reliable water flow. 【Function Design】The washing machine outlet box features both central and side drain design,which provide a convenient water drain function for washing machines. 【Noise Reduction】This washing machine box with water hammer arrester can reduce hum noise when you running your portable washer in laundry room,and provide a safe,quick water supply installation for washing machines, water supply shut-off access.the laundry box provides a recessed space for your supply valves. 【Standards Compliance】This washing machine outlet box meets American standards and complies with UPC and NSF requirements, ensuring adherence to strict safety and quality standards. Color MH-611-11 Style Sweat & Thread W/SS Arrestor Material Stainless Steel Brand Name IWENISEN Finish Type Painted Manufacturer IWENISEN Model Number Sweat & Thread W/SS Arrestor Included Components Stainless Steel Water Hammer Arrestor