This gas tank has been engineered especially for large scale model boating. It mounts like our ever popular radio box, resting between standard 5" spaced stringers (rails). Simply drill 4 holes for the mounts, apply a bead of silicone adhesive on the underside of each flange, stick in place, then install the Quick Mount Kit(included). The Fuel Cell is molded Polyethylene and features a vented screw-on cap. It weighs only 8 ounces and will hold 24 ounces of fuel. We also offer a new in-line fuel filter to be used with the Enforcer Fuel Cell, or if you demand highest quality, there’s the new "Super Gas Filter" #FU5043.