Builted-In Rubber Rings for Better Sealing. Install On Angles Stop Valves, Adding Outlet, Supply Water To The Dishwasher, Water Heater, Portable Washer(Small Washer). Adapt to most kitchen sink under feed water supply to Water filter, Reverse Osmosis water systems. You can control on/down of branch waterway and adjust water flows size to suit your needs. Tees Valves for both potable and nonpotable water. Great for residential and commercial applications. Suitable for both cold and hot water systems., Manufacturer: SANRLO