IMPROVES VISIBILITY IN WET WEATHER. Invisible Glass Clean & Repel Washer Fluid Additive enhances driving visibility and safety in wet weather by helping shed water from your windshield. TURNS WASHER FLUID INTO A POWERFUL RAIN REPELLENT. Invisible Glass️ Clean & Repel Washer Fluid Additive will cause water bead up and run off your windshield with only a spray of your windshield. ULTRA CONCENTRATED FOR CONVENIENT SINGLE-USE. Invisible Glass Clean & Repel Washer Fluid Additive is ultra-concentrated and pre-measured to treat one full reservoir. There is no need to measure. Just pour and go! NO RISK .