MT730CPB Finish: Polished Chrome Features: -Bathroom grid drain with overflow.-19 Hole brass bathroom grid drain for sinks and vessels.-6" tailpiece.-ASME A1121.18.2 and CSA B125-1 certified. Options: -Available in several finishes. Construction: -Brass construction. Dimensions: -1.5" Drain opening and 2.5" threaded drain body. Warranty: -Manufacturer provides one year warranty.