The Trimmer Gas Fuel Tank 4137 is specifically designed for Sthil FC75 FC85 FH75 FR85 FR85T FS75 FS80 FS80R FS85 FS85R FS85T FS85RX models. This tank ensures optimal performance and safety for your marine vessel. It is made of high-quality materials that provide long-lasting durability and resistance to corrosion. The threaded design and adjustable neoprene clamp make it easy to install and secure. This unit is engineered to meet the latest marine fuel safety standards, ensuring a secure and efficient fuel supply for your Sthil vessel.