Thank you for your question. The Delta Nyla Lavatory 17708LF-SS-ECO faucet can be installed as a standard sink installation, with a minimum back splash clearance of 2 1/2" (64 mm). However, the grid strainer/drain assembly that comes with the faucet has no overflow holes in it. This faucet requires 1 1/8"~1 1/2" (29~38 mm) hole size and a maximum deck thickness of 2 13/16" (72 mm).
Date published: 2018-03-13