*For users under extreme conditions*
For users driving under extreme conditions such as off-road or brush areas. This metal lock functions as a tool-required way to reinforce the lever of your Fumoto valve, ensuring it remains locked even under extreme conditions, eliminating the chance of accidental opening due to debris.
If you are using a Fumoto valve on off-road vehicles such as farm tractors and logging equipment in more hazardous environments (i.e. corn fields, brush areas), it is recommended that a metal lever lock be used for extra safety and security. The metal lever lock will firmly keep the lever in the locked position at all times.