Custom programs can be set for Liquids or other hard goods. Built in water pump maintains consistent water supply and accurate steam for every cycle. To regularly test sterilization preformance,an access port is built into the Sterilemax for easy & safe verification of temperature and pressure. Largest Bench top sterilizer chamber available ,Accommodates Three 2 Liter Erlenmeyer flasks. Two year warranty . 12" dia x 18" deep {120 Volt}