Presto 01755 Pressure Canner & Cooker, Aluminum, 16-Qt CapacityThe easy to read gauge automatically registers a complete range of processing pressures. Air vent cover lock allows pressure to build up only when the cover is closed properly and prevents the cover from opening until pressure is safely reduced. Presto pressure canners also double as water bath canners (pints and half pints only for water bath method ) for preserving fruits, jams, jellies, pickles and salsas. 16 Quart liquid capacity (15. 1 liters)