Rev-A-Shelf's RV units are a perfect way to clear your kitchen of unsightly trash by hiding it inside your cabinet. The RV-814 is different than our other units, because it is specifically designed to fit in either a 8-1/2" or a 14-1/2" opening. Many sinks have plumbing and other obstructions that can get in the way, so this unit can be turned in either direction to try and avoid this. Perfect for either the kitchen, laundry room or bathroom.