Durable, waterproof replacement cap for windshield washer fluid reservoirs and wiper spray bottles that protects internal parts, prevents clogs, and withstands longterm outdoor exposure. Key benefits Protects critical components: Keeps rainwater, dust, and debris out of the washer fluid reservoir and spray nozzles to prevent corrosion and clogging. Extends system life: Made from quality material designed to resist fading and cracking under prolonged outdoor exposure, helping preserve the washer system's performance. Maintains cleaning performance: By sealing the reservoir and nozzle area, the cap reduces contamination and helps ensure reliable windshield cleaning when you need it. Easy to install and use: Designed for straightforward fitment so you can a worn or missing cap quickly without tools. Features and performance Material: Constructed from quality material for longterm durability and weather resistance. Waterproof design: Prevents rainwater and moisture intrusion that can corrode internal parts or dilute washer fluid. Function: Seals windshield washer fluid bottles and wiper spray bottle caps, protecting nozzles and preventing dust or foreign objects from entering and clogging the system. Reliability: Resists fading and cracking under outdoor conditions to maintain a secure seal over time. Compatibility and sizing Intended use: Suitable for sealing windshield washer fluid reservoirs and wiper spray bottle caps. (Confirm fit with your vehicle's reservoir cap style before if exact fitment is required.) Typical use scenarios Routine maintenance: a worn or damaged cap to stop leaks and contamination during regular vehicle upkeep. After or part replacement: Reinstalling a secure cap after reservoir cleaning or nozzle service to prevent debris from entering. Seasonal protection: Install before heavy rain or winter conditions to prevent moisture intrusion and preserve washer fluid effectiveness. Installation notes Simple replacement: Remove the old or damaged cap and press the cap into place until it seats securely. No special tools needed. Check fit: Ensure the cap sits flush and forms a continuous seal; if it does not, verify compatibility with your reservoir or spray bottle cap design. This cap provides a practical, durable barrier that protects the washer system, reduces the risk of nozzle blockages, and helps maintain clear visibility while driving.