Fitment and Product Information. Battery Box Tow Rax Aluminum Machine Finish 14.375 in. Length 8.875 in. Width 10.750 in. Brandname: Phoenix USA Part Number: SP14B Product Details. Phoenix Tow Rax battery boxes are tough, durable, and functional. You can give your battery extra protection and reduce underhood clutter with these rugged aluminum battery boxes. Tow Rax battery boxes are available in a choice of sizes and finishes. Each of the boxes feature a sealed design with external vent tube, and they come complete with mounting rods, mounting rod brackets, and stainless steel lock nuts. Part Type: Battery Boxes and Trays. Product Line: Phoenix Tow Rax Battery Boxes. Battery Box External Length in. Battery Box External Width in. Battery Box External Height in. Battery Box Internal Length in. Battery Box Internal Width in. Battery Box Internal Height in. Mounting Hardware Included: No. WARNING : This product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer.