The AUTOMANN Washer Reservoir Cap is designed to prevent leaks and spills, ensuring that your washer fluid is contained and ready for use when you need it. Made from long-lasting materials, this cap is built for extended use and reliability, so you can count on it to keep your washer fluid secure. The textured surface of the cap makes it easy to open and close, even with wet or slippery hands. Its transparent design allows you to easily check the fluid level at a glance, so you can always know when it's time to refill.