[Compatibility] You can employ the adapter to connect the lances, spray equipment, pipe cleaning hoses, and other accessories that are compatible with Kärcher bayonet connector (male) to the older commercial guns (up to 2017) with an M22 AG (male thread). [Convenience] The B bayonet connection of high-pressure couplings provides a rapid and straightforward connection, enhancing the operational simplicity. [Improve cleaning efficiency] Applying this high-pressure cleaner to the extension rod can expand the cleaning range and effectively improve cleaning efficiency. [Internal thread bayonet connection] Compatible with Kärcher consumer-type accessories with bayonet. [Attention] It should be noted that this adapter is not compatible with devices from 2.