3-1/2 in. Kitchen Sink Drain Assembly in Stainless Steel with Basket Strainer and Cover - - 31310841
The Plumber's Choice 3-1/2 in. Strainer Basket Replacement for Kitchen Sink Drains Stainless Steel with Stopper and Rubber Seal (2-Pack) RB12157x2 - The Home Depot
Kitchen Sink Drain Assembly for Opening 3-1/2" with Basket Strainer Brushed. - Amazon.com
3 1/2" Flat Strainer for Kitchen Sink Drain Opening
Long Shank Strainer Basket Sink Drain with Lift-Style Stopper - 3 1/2"