Kohler K-6646-ST Bottom Basin Rack for Vault K-3823 and K-3839, 1, Stainless Steel 16-19/20" x 15-19/20" For use with the Vault K-3823 and K-3839 offset kitchen sink Dishwasher-safe Fits in the large (left) basin of the Vault K-3823 or K-3839 Crafted from stainless steel