Umbrella Universal Lavatory Drain - Exposed Installation • European round umbrella universal push-down lavatory sink drain • Can be used on sinks with and without overflow holes • Fits 1-1/2 in. to 1-5/8 in. opening with 1-1/4 in. tailpiece • Fully finished for exposed installations • Fits sinks from extra-thin sheet metal up to 2-3/4 in. thick • Push in stopper to seal water • Heavy duty brass construction • Do not use plumber"s putty for installation