The Etna sink faucet by Viospiral requires 1 hole for its installation. It can be installed in a hole that has been drilled into an inset, undermount, or wall-mounted sink. It is tall, suitable for free-standing sinks, i.e., countertop sinks, and can also be installed on a counter. Depending on the construction, it can be installed behind the sink or on the side. It is necessary to check the flow of water so that it ends up in the center of the sink for full functionality. - Installation: Countertop - Number of Holes: 1 hole - Mixer - Color: Silver