Features: Bottle cap is constructed from chemical-resistant rubber for durability and easy installation/removal. Works on most water-cooled motorcycles, snowmobiles, and ATVs. Includes 275cc bottle, hose, clamps, mounting ties and instructions. Designed for hot weather and/or high-altitude riding conditions. Built-in mounting holes provide multiple mounting options. Compact, versatile, high-density polyethylene bottle. Prevents loss of coolant due to overheating.