Product: Windshield Washer Reservoir Cap Key benefits Protects the washer reservoir: the durable automotivegrade plastic cap prevents dirt, stains, and debris from entering the washer bottle, reducing the risk of clogs and damage to the reservoir and pump. Keeps internal components dry: the waterproof design shields internal parts from rain and moisture, which is important for reliable operation in humid or wet conditions. Minimizes fluid loss: the doublesealed gasket limits evaporation and helps maintain proper washer fluid levels for consistent performance. Durable and easy to handle: stable, quality plastic construction is lightweight, easy to carry, and designed for straightforward car installation and removal. Features and function Material: automotive quality plastic for longterm durability and resistance to environmental exposure. Seal system: doublesealed gasket for improved waterproofing and reduced fluid evaporation. Check gasket seating to ensure a proper seal. Purpose: designed to cover and protect the windshield washer fluid bottle, preventing contaminants and moisture from affecting internal components. Practical use scenarios Routine replacement: swap a cracked, missing, or worn cap to restore a proper seal on the washer fluid bottle and prevent future contamination. Wet and humid climates: use this cap to protect the washer system from rain and humidity that could otherwise corrode or impair internal parts. Seasonal storage or long trips: install before longterm vehicle storage or extended travel to reduce evaporation and keep washer fluid at levels. Installation and care Installation is simple: remove the old cap, confirm gasket integrity, then press the cap into place until the gasket seals fully. Maintenance tip: periodically inspect the gasket for wear or debris and if the seal is compromised. Compatible use Designed for use as a windshield washer bottle cap; intended for automotive installation and everyday vehicle operation.