Car windshield reservoir replacement cover Easy installation: Snapon or knob design; simply press or snap it in to install. Purpose and function: Maintains longterm use of the windshield system, prevents contaminants from clogging, and ensures uninterrupted flow of washer fluid. Benefits: Innovative design with an airtight seal that fits your tank and helps keep the reservoir protected. Material and durability: Made of plastic material; provides a solution to coolant leakage and overheating problems. Compatibility: Fits your tank. Use scenarios Routine replacement: Swap in this cover when the original cap is damaged or missing to restore a secure seal and maintain washer fluid delivery. Allseason readiness: Use this cover to keep contaminants out and preserve washer fluid flow in varied weather and driving conditions. Fleet maintenance: Quick, reliable replacement across multiple vehicles to standardize reservoir protection and prevent leaks. Installation tips Align the cover with the reservoir opening. Press firmly to engage the snapon section or turn the knob to secure, ensuring a tight seal.