SmartPlug 30 AMP Male Non-Metallic Inlet Cover - Black [BM30PB] Towing Accessories They feature a storage slot

They feature a storage slot for your filet knife and fishing pliers

Type: Adapters

Inlet Connection:11/2" (dia 38 mm) hose or 11/2"NPT

The Battery Mate is the ultimate solution for charging several batteries simultaneously and is compatible with any type of alternator/battery charger

SmartPlug 30 AMP Male Non-Metallic Inlet Cover - Black [BM30PB] Towing Accessories They feature a storage slot30 AMP Male Non Metallic Inlet Cover Black SmartPlugs 30 AMP 125 V inlets provide 20Xs more electrical contact area eliminating the overheating conditions seen with twist type connectors. The solid sleeve connection and weatherproof seal makes it a preferred option. The mounting flange holes match existing inlets so it can be easily installed to replace the old twist type inlet products in minutes. Features: Reduces Overheating Increased pin & clip