Aluminum Track Start with the heavy-duty 48" x 1-7/8" anodized aluminum track to custom design your accessory system. Mounts to any surface—boat transoms, gunnels, vans, and truck beds. May be cut to any length. One track holds up to five tank brackets (four, if end caps are installed). Holds standard and adjustable brackets, rod holders, accessory mount, rope cleat and drink holder.