Asepsis Self-Contained Deluxe Single Water System w/2 Liter Bottle. Single 2-liter Asepsis Deluxe System. Metal cover with white powder coat finish. Water pressure is controlled by adjustable regulator 7205. Standard 28mm thread for water bottle.On/off toggle releases bottle pressure. Dimensions: 5" x 4 1/2" x 17. Deluxe models have a selector toggle allowing you switch between city and bottled water.