Designed for use with RV\'s and heavier utility & equipment trailers equipped with electric brakes.
57991: Spring loaded connector door repels moisture when not in use. Oversize door hinge provides long lasting durability. Attachment holes align with most industry mounting brackets. Flat blade tin-plated terminals feature convenient Phillips screw wire attachment
57981: Spring loaded connector door repels moisture when not in use. Slotted attachment holes align with most industry mounting brackets. Flat blade brass terminals feature convenient Phillips screw wire attachment.
57921: Flat blade tin-plated terminals feature convenient Phillips screw wire attachment