APPLICATION RANGE:Used for controlling or adjusting water flow in the garden irrigation system, piping system, water pump, swimming pools, etc.DURABLE DESIGN:1. Made of brass with good rust and corrosion resistance. 180 degree covered handle for comfortable control.2. If the barb is not easy to be inserted into the tubing, you can dip the tubing into boiling water for a while.PACKAGE INCLUDE:4 Pack Pressure Valve, which total length is 47mm/1.85 inch, hose barb diameter is 8mm.NEED ATTENTION: Please confirm the size before placing the order.