The Aluminium Fuel Tank Filler Cap is a robust option to cap off the male threaded fill point on a fuel storage tank, tanker faucet or valves. A tank fill point cap is designed to prevent dripping and unwanted dirt and water from getting into the tank's fill pipe. These models are often seen on a diesel or oil tanks, and although they are popular as an oil tank cap they can be used with any fluid compatible with the materials of construction. Complete with two large lugs for easy application, brass chain and a sealing washer, the aluminium fuel tank filler cap is a sturdy and durable option. A range of sizes are available depending upon the installation at hand - see measuring guide download if you are unsure which size you need.