Keeney 3.5-in Chrome Stainless Steel Rust Resistant Strainer with Lock Mount Included in the Kitchen Sink Strainers & Strainer Baskets department at Lowes.com
The Plumber's Choice 3-1/2 in. - 4 in. Stainless Steel Drain Assembly with Strainer Basket and Rubber Stopper - Long Extended Shank ESS1357 - The Home Depot
2 Pack - Kitchen Sink Strainer and Stopper Combo Basket Replacement for Standard 3-1/2 inch Drain, Stainless Steel Basket with Plastic Knob, Rubber Stopper Bottom - Hilltop Products - Amazon.com
Elkay 3.5 in. Kitchen Sink Drain with Deep Strainer Basket and Brass Tailpiece LKDD - The Home Depot