Brizo RP72412BNX Grid Strainer Lavatory Drain With OverflowGrid Strainer Lavatory Drain With Overflow 2 3 8" diameter grid strainer With overflow holesfor use with lavatory sinks with built in overflow drain holes Fits sinks with standard 1 5 8" drain hole size If used with electronic lavatory, must use plastic tailpiece included Weight: 0. 7 lb Additional Resources: Specification Sheet Installation Sheet