Camco 30AM/50AF Power Grip Marine 12" Dogbone - M-Lock/F-Locking Adapter30AM 50AF Power Grip Marine 12" Dogbone M Lock F Locking Adapter The Camco 30 amp male 50 amp female Locking Adapter is a 12" adapter cord with a threaded locking ring that creates a weatherproof connection. The durable, long lasting STW cord has a 180 degree turn from male to female end. Features: 30 AMP locking male end with 50 AMP locking female end 12 inch adapter Threaded locking ring creates a weatherproof connection Durable, long lasting STW