Ultrazone MINI Installation Instructions Used WITHOUT redox controller 1) Connect the airline from an air supply or venturi to the connection on the back of the ozone bulb chamber labeled "IN". 2) Connect the airline, going to the skimmer or reactor, to the connection on the back of the bulb chamber that has no markings. 3) Plug the power cord into a GFCI protected, grounded receptacle. 4) Adjust airflow through the unit to meet your needs. Used WITH a redox controller 1) Follow above instructions steps 1-3 2) Plug the power cord into your redox controller. CAUTION -- AIRFLOW MUST BE IN THE PROPER DIRECTION TO AVOID SERIOUS DAMAGE TO THE OZONE BULB CHAMBER. IF THE UNIT IS INSTALLED IMPROPERLY AND DAMAGE OCCURS, THE WARRANTY WILL BE VOID. The ozone producing bulb is mounted externally on the rear of the ozone generator. If the ozone bulb requires replacement (when the bulb fails to produce light) simply remove the 2 air line connections, remove white endcap, disconnect the electrical connection, unclip the 2 cartridge retaining clamps, remove bulb retaining nut and gasket. You can now slide the ozone bulb out of the stainless steel housing an install new ozone bulb in reverse order.