Prevent emitters from clogging and keep your drip irrigation system operating smoothly with the filter washer. Also known as a screen washer, this component works stealthily inside a compatible drip fitting to block particles in the water flow. Debris is trapped in the 200-mesh screen before it can infiltrate the system. Easy to remove for cleaning - simply unscrew the end of the fitting, tap the filter washer out, and flush clean. The stainless-steel mesh is mounted on a sturdy frame of high-impact acrylonitrile butadiene styrene (ABS) treated with UV inhibitors, and makes a watertight seal when properly installed.