Basket Strainer 4 Inch ABS Plastic Kitchen Sink Drain with Removable Strainer Assembly and Rubber Stopper, Universal Fit,3-1/2, White - Bathroom Sink And Tub Drain Strainers - Amazon.com
Karran Karran basket strainer 3.5-in Black Plastic Rust Resistant Strainer Basket in the Kitchen Sink Strainers & Strainer Baskets department at Lowes.com