1/4" Anti-Drip Adjustable Valve Inline Barbed Ball Valve (Flow-adjustable Valve)

  This miniature valve there are 3 types, the double barb 4.5mm can be used to connect 4/7mm hose (also called 1/4'' hose or 4-5mm inner diameter hose);  the single barb 4.5mm to flat OD 6mm can contact 1/4" hose and 6mm inner diameter sprinkler head or dripper ;  the flat OD 6mm to flat ID 6mm can connect to a sprinkler dripper head with 6mm inner or outer diameter, it can be adjusted the water flow rate and turn on or off the water according to rotating it.