Sink Cock with ‘ D ‘ Band Swinging Spout (Wall Mounted) Sink Cock with Regular Swinging Spout (Wall Mounted Model) with Wall Flange. The product made up of brass and is silver in colour. The products comes with 10 years warranty on manufacturing defects. COTO provides its clients with innovative bathroom faucets, accessories, showers and specialty products under its COTO brand. If you have been waiting to build the bathroom of your dream choose COTO products to bring your bathroom design ideas to life.