If your spa pack has a special outlet for connecting the Ozonator, this should be used. The most common connectors are the three prong and amp type connectors. Otherwise, the Ozonator may be hard-wired by a qualified electrician. This is the most common ozonator installation method, for spas which are not ozone-ready. This method is the simplest, and very effective.
Illustration shows vertical system.
Others are horizontal configuration. If you have more than one air Venturi line, select the one with the best suction, connected to the lowest spa jet if possible. Cut the air control tubing, and install a tee with hose connector. Attach a piece of flexible hose about 6 inches long to the hose connector, as shown in the illustration. Attach the other end of the 6 inch length of hose to the check valve, with flow towards the tee.