1 Year Warranty! Includes Free Gloves for Handling. 14.7" Quartz sleeve AQ-UV-Q330 used for UV Bulb AQ-UV-L330C, Aquasana Premium Compatible OEM Quality Quartz Sleeve And Lamp for Models and Units AQ-UV-10C series of ultraviolet water treatment systems. Contains 2 Gasket seals in package Contains 4 Prts, Sleev, UV Lamp and 2 Gaskets. Manufactured in EPA Registered Facility – Produced by LuTrace (EPA Establishment Number: 99027-NY-1) using high-purity quartz glass to ensure maximum UV transmission and consistent performance. Includes Free Gloves for Handling. 10,000 Hours lamp life, replace your lamp annually to ensure optimal system performance. Quartz sleeves can be cleaned and reused, but if your quartz sleeve, cracks, breaks, or becomes permanently cloudy and can not be cleaned it needs to be replaced.