Raindrip R345CT 2-Count 5/8-Inch Compression Coupling Used to connect 2 sections of 5/8-inch (.700) Tubing in order to direct water to another location or to expand or repair your supply line Color coded Black for easy identification Compression coupling Durable plastic construction Built to last Compression coupling For use with 5/8-Inch hose only Black compression ring 2 per card