These sink drains fit all Scandvik sinks except 10280 & 10662. Fit a 2-7/16" drain hole opening. 1" Low Profile Sink Drain: 1" sink drain with side discharge for tight quarters. Includes drain, stopper & chain. Requires 1-7/8" clearance below sink. 1-1/4" Sink Drain: Includes drain, stopper & chain.