The Vitapur Greenway UV Lamp sleeve is constructed to allow the optimal amount of UV light to pass through. The durable quartz glass of this Vitapur UV lamp is clean and without blemishes, which allows the UV system to run more efficiently. Long-lasting, this Greenway UV lamp gives you a great amount of usage. For convenience, the water dispenser UV lamp is also easy to clean and service. Get yours today and experience the difference.Note: This product may require up to 2 additional days for order processing prior to shipping