KOHLER K-6688-NA Metal Lavatory Frame Fits around the outside of k-2890 Tahoe flat-rim bathroom sinks Durable stainless-steel construction Resists corrosion and tarnishing for lasting use and beauty For use with K-2890-4 Tahoe 20-Inch x 18-Inch lavatory All-metal construction KOHLER finishes resist corrosion and tarnishing, exceeding industry durability standards two times Fluid design lines for ease of cleaning