MARINCO Y Adapter 2-50 Amp Locking To 50 Amp Straight 164AY Y Adapter, 2-50 Amp Locking To 50 Amp Straight Male Connector: 50A 125/250V Straight Blade Crowfoot with Molded Grounding Clip, attaches to dockside receptacle or cordset Female Connector: 2-50A 125V Locking w/ Sealing Collar System, attaches to cordset or boat inlet Equipped with covers and sealing collars, for use in wet locations