3600 mg/h Ozone Element rated for 10,000 hours at 40% humidity. (3.5 years with 8hr day usage). Price includes shipping and handling. Includes 2 soldered wires with spliced ends! Other vendors will sell you ozone plates without the soldered wires. Unless you know how to solder these types of wires and have the right tools, it can be a little tricky and you might not get a good solder on the wire (fire hazard) We only recommend our customers use our pre-soldered ozone plates on our machines.