9 inch vacuum chamber Digital heat pad Chamber NOT included, sold separately. Heat pad must fit correct size of chamber! fits all competitor 3 quart Pyrex and 3 gallon chambers! fits our 2, 3 and 5 gallon aluminum pots and 1Gl flat chamber UL listed Fahrenheit Digital Controller Min Temp: ambient + 5Max Temp: 160F Voltage: 110VAC only Item Weight 2 pounds Manufacturer Pacific Star Corporation Item model number heatpad9inch Is Discontinued By Manufacturer No