One-piece Adapter, 30 Amp Locking To 20 Amp Locking Cat. No. M-84A Weight 2 lbs	$75.62
Product Features:  Note: This one-piece adapter does not have a cover and is not recommended for use in wet locations Male Plug: 20A 125V Locking, attaches to dockside receptacle or cordset Female Connector: 30A 125V Locking, attaches to cordset or boat inlet