Amazon.com: KOHLER K-8668-1A1-20 Riverby Top-Mount Single-Bowl Kitchen Sink with Bottom Basin Rack and Single Faucet Hole, 27" x 22" x 9-5/8", Suede : Everything Else
Kohler K-5479-4-95 25 x 22 x 5.875 in. Riverby Top-Mount Single-Bowl Kitchen Sink - Ice Grey - Walmart.com
Amazon.com: KOHLER K-5479-4-KA Riverby 25 In. x 22 In. x 5-7/8 In. Top-Mount Single-Bowl Kitchen Sink with 4 Faucet Holes, Black 'n Tan, 25" x 22" x 5-7/8" : Everything Else