Key benefits Prevents stains, debris, and moisture from entering the windshield washer water tank, reducing the risk of clogged lines and pump damage. Provides a waterproof seal to protect the internal parts of the wiper fluid reservoir from rain and humidity, helping components stay dry and functional. Durable construction and precision fit reduce the risk of cracks, leaks, or breakage over time. What it does Acts as a replacement or protective cap for the windshield washer/wiper fluid reservoir. Uses a gasketsealed closure to keep contaminants out and retain fluid inside. Engineered to withstand harsh weather conditions and routine automotive use. Material and construction Made from automotivegrade plastic for stability and longterm durability. Precisionmolded design for a secure seal and consistent fit. Gasket interface ensures a leakresistant connection; inspect gasket seating during installation. Function and compatibility Designed for use with automotive windshield washer/wiper fluid bottles and reservoirs. Functions as a direct protective cap to maintain reservoir integrity and fluid cleanliness. Compact and lightweight for easy handling and installation. Performance highlights Resists rain and humidity to keep internal components dry. Tight sealing design minimizes evaporation and fluid loss. Robust enough to tolerate temperature and weather fluctuations without deforming. Recommended use scenarios 1) Daily driving in wet or humid climates: prevents rainwater and moisture from entering the washer reservoir, helping the pump and nozzles remain reliable. 2) Offroad or dusty conditions: keeps dust, dirt, and debris out of the fluid tank, reducing clogging and maintenance needs. 3) Seasonal storage or long trips: provides a secure, leakresistant seal during vehicle storage or transport. Installation and care Press into place until the gasket seats evenly; visually verify the cover is fully sealed. Periodically check the gasket for wear and if damaged to maintain an effective seal. Clean with mild soap and water; avoid harsh solvents that can degrade the plastic or gasket.