Heavy-duty, non-corrosive black plastic. Includes adjustable-height crossbar and two retaining bolts. Meets ABYC Standard E-10 and USCG requirements. Patented design. Install with #10 screws.
Fits: Series 24/24M, ID: 10-5/8" L x 6-3/4" W x 8-3/4" H ", Case: 6