Nantucket Sinks 3.5EDF-ORB Extended Flange Disposal Kitchen Drain, 3.5", Brushed Oil Rubbed Bronze Extended collar is designed to fit fireclay applications and garbage disposals For disposer with 3-3/8 I.D. and 3 bolt mounting Fits sinks up to 1-3/4 thick Fits Insinkerator (ISE)  old & new models, Kenmore, Maytag, Ace, Jenn-Air, Kitchen Aid, Whirlpool disposals Deep oil rubbed bronze finish coordinates with your kitchen fixtures