Flush your drip irrigation lateral quickly and easily with DIG's Q58 Compression End Cap. Install the End Cap onto the end of the 1/2 in. (.700 OD) poly tubing. To flush the line, unthread the 3/4 in. cap for periodically flushing dirt, sediments and debris that have accumulated within the drip lateral or dripline, keeping the system clog free. It is recommended to flush the system each time you add or replace components and at the beginning of each season. Color: Blacks.