Aerospec Sink, 4-bowl, with 18" LH/RH drainboard, 21" W x 16" L-R bowl dimensions, 14" D fabricated bowl, 10" H splash, s/s gussets, crossbraced legs & adjustable feet, 14/304 s/s, "Aero Safety Edge", Space Saver const, fully welded gussets, shipped These NSF four compartment sinks come in a variety of sizes and available with left and right drainboards that vary in length. Economy MF4 sinks use 16 gauge 304 stainless for the bowls, 430 stainless for the body. 3F4 sinks use 16 gauge 304 stainless throughout. Premium Aerospec 2F4 models use a thicker 14 gauge, 304 stainless and have a larger 10 inch backsplash, a stainless enclosure surrounding the bowls, stainless feet, and crossbracing on the legs. See spec sheet for more information.