Hobie Electrical Connector Set- Set of male / female waterproof plugs with wires and 4 waterproof(silicone filled wire nut) connectors.Hobies wiring connector set makes it easy to plug in your fish finder into almost any sealed battery. The waterproof connection works great and lasts for years of use for plugging right into most sealed batteries. Works on all Fishfinder batteries we sell.Hobie Part # 72021027
