American Standard 735121-400.020 Cadet-3 Toilet Tank Cover for Models - 2383.012, 2384.012 and 2386.012, White (For use with select Cadet Pro 12 inch rough tanks) Toilet tank cover only For use with Cadet-3 two piece toilets with standard 12-Inch rough tanks, models 2386, 2383, 2384 Vitreous china White American Standard - Style That Works Better