Material - PVC 
Diameter - 2.5 Inch

An irrigation flush valve is an essential component of a drip irrigation system that helps to maintain the health of your plants by preventing the buildup of sediment and other contaminants in the system. It is installed at the end of drip irrigation system. Its purpose is to flush out any sediment or debris that may have accumulated in the system and to prevent clogs from occurring.

Used for  preventing the  clogs and help to maintain the system's efficiency.

The flush valve is a simple mechanism that, when opened, allows a surge of water to flow through the lines at a higher pressure than normal. This reversed flow helps dislodge and carry away any debris that might be obstructing the system.