Thank you for your question, Dale! The tall bottom part of the faucet body of the Delta Ara Vessel Lavatory 767LF faucet is considered the riser. It makes the faucet taller than normal lavatory faucets. This faucet has a "Laminar flow" in which the water travels smoothly or in regular paths, in contrast to turbulent flow, in which the water undergoes irregular fluctuations and mixing. This flow lends a beautiful, refined look that complements the design of the faucet.
Date published: 2018-04-17