Amazon Add-on Item. Amazon offers the Rain-X 16 fl oz Glass Treatment for a discounted price of $4.84 plus free shipping on orders above $49, or with Amazon Prime on orders above $25. Limited time offer. You save 35% off the price! That's the lowest price we could find. This has a 4.5 out of 5 star rating with over 750 reviews on Amazon.

• Dramatically improves wet weather driving visibility
• Repels rain and reduces the adhesion of sleet and snow
• Apply to exterior glass
• Improve all-weather visibility, safety and driving comfort
• Helps easily remove frost, ice, salt, mud and bugs