What is the clearance in the back of the unit required for all hookups? I want it to replace a unit that is 27” deep and needs about 3-4” of additional space.

Hi there Adam! For smooth operation, to prevent any hitches with the water inlet hoses drain hose, and to ensure there's adequate airflow, it's essential to maintain a minimum clearance of at least 1 inch (2.5 cm) on the sides and 4 inches (10 cm) behind your appliance. Remember to consider any wall, door, or floor moldings that might require more room. Should any questions or concerns pop up, please contact us on social media @LGUSSupport with your contact details! ^Anthony