Heavy-duty, non-corrosive black plastic. Includes adjustable-height crossbar and two retaining bolts. Meets ABYC Standard E-10 and U.S. Coast Guard requirements. Patented design. Install with #10 screws.

Inside Dimensions:
993055:10-5/8"L x 6-3/4"W x 8-1/4"H
993056:12-1/8"L x 6-3/4"W x 8-1/4"H

WARNING
This product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm.