Purpose and key benefit: A durable windshield washer fluid cap that creates a strong, reliable seal to prevent leaks and spills. Keeps washer fluid where it belongs so your wipers and windshield washer system deliver consistent cleaning performance. Material and durability: Made from quality plastic that is wearresistant, tough, and crackresistant for longterm use. Designed to withstand everyday temperature and vibration stresses without deforming or failing. Keeps your system clean: The cap effectively blocks dust, dirt, and other impurities from entering the washer fluid reservoir, helping prevent clogging of lines and nozzles and preserving fluid quality. Easy installation: Pushin design — no tools required. A simple press installs or replaces the cap quickly, making maintenance fast and straightforward. Performance highlights: Strong sealing surface reduces the risk of fluid loss and contamination. Resilient construction resists cracking and wear over time. Maintains washer system performance between services. Compatibility and size guidance: Designed for use as a windshield washer fluid reservoir cap. Check your vehicle's reservoir cap shape and mounting style to confirm fit before . Typical use scenarios: a cracked or leaking washer fluid cap to stop fluid loss and prevent dirt from entering the reservoir. Install during seasonal maintenance to ensure washer fluid remains clean and effective for winter or rainy conditions. Fit on vehicles used offroad or in dusty environments to protect the reservoir from contaminants and reduce nozzle clogging. What you get: A sturdy, easytoinstall washer fluid cap that protects your reservoir, preserves washer performance, and reduces the need for frequent maintenance.