: Counter electric units use self-contained refrigeration, while drop-in units generally rely on a cold plate chilled by ice in a bin.

: A higher-capacity 8-valve system with a 55 lb ice bank, suitable for busier environments. Available at Soda Parts Express .

: Measure both the top-side counter space and the "backroom" space needed for CO2 tanks, syrup boxes (BIBs), and pumps.

: Ensure you have dedicated electrical (typically 115V or 230V) and a water source with proper filtration. Commercial suppliers like Soda Dispenser Depot often provide pre-assembled lines to simplify the process.