Can you tell me the size of the cut-out for this sink? I need to know that the existing hole is not too large. Thanks.A. The Kohler K-2337-1 is over all 22-3/4" x 18". Usually your hole size would be 1" inch in from the overall dimensions. 21-3/4" x 17". There is a template that comes with the sink when you order it.
What is overflow?A. For a lavatory sink, an overflow is a hole near the rim that allows for water to spill in and drain out to avoid overflowing of the sink. The K-2337-1 has an overflow.
Does this come with a drain and is it a pop up?A.
The Kohler K-2337-1 is just a sink and does not include a drain.
Will this sink fit a vanity that is 21inches by 30 inches?A.
The Kohler K-2337-1 overall dimensions are 18 inches width and 22-3/4 inches length so the general rule is a minimum cabinet length of length + 2 inches, meaning you would need a cabinet bigger then 24-3/4 inches so a 21 inche by 30 inch vanity should work great. This sink is for drop in only, not undermount installation.