Material : Other Item Dimensions LxWxH: 10.12 x 18 x 21.75 inches Color: Black Unit Count : 1.0 Count Extremely tough; drop-tested in temperatures from -20F to +120F degrees and completely resistant to acid Meets ABYC and U.S. Coast Guard standards as an original equipment manufacturer (OEM) battery hold-down system Durable straps withstand 350 lbs. of force—nearly 4 times the Coast Guard requirements. For Series 27 batteries (10-1/2 inch maximum height) Inside Dimensions with Lid Installed (L x W x H) 13-7/8" x 7-1/4" x 10-1/2" Outside Dimensions with Lid Installed (L x W x H) 16-7/8" x 9-5/8" x 10-7/8" Attwood products are both compatible and reliable, engineered and built with a never-fail attitude New larger capacity! Vented black battery box for series 27 batteries. (10-1/2" maximum height) Battery boxes meet ABYC Standard E-10 and U.S. Coast Guard Specification Number 183.420 as an OEM-installed battery hold-down system Polypropylene construction for total acid resistance. Hold-down straps resist 350 pounds of force, nearly four times the USCG requirement. Battery boxes are drop tested in temperatures ranging from -20 Degree F to +120 Degree F Mounting hardware is included