Amazon.com: EZ-FLO Stick Post Replacement Basket, 3-1/2 Inch Diameter, Stainless Steel, 30053 : Patio, Lawn & Garden
The Plumber's Choice 3-1/2 in. Strainer Basket Fixed Post Replacement for Kitchen Sink Drains Stainless Steel and Rubber Stopper (2-Pack) RB11157x2 - The Home Depot
Jameco Sink Strainer | eBay
Keeney 3.5-in Chrome Stainless Steel Rust Resistant Strainer in the Kitchen Sink Strainers & Strainer Baskets department at Lowes.com
Watts C695WH | Watts C695WH Jameco White Sink Strainer | AF Supply