Brass Tee Shut-off Ball Valve L-Flow 3/8" in 10mm Fitting Hose Barb Connector T
$7.85
1 set includes 1 valve and 3 barb fittings that can be used on the valve. Note that you will need to assemble and seal the barb fittings to the valve yourself using teflon tape etc. The thread is BSPP/G 1/4".