Quartz Tube, Fostoria, Size- 5/8 IN, 120 V, Frequency Rating- 50/60 HZ, 1000 WTT, Style- Coiled Element with Porcelain End Caps and Pigtailed Termination, Insert Length- 18-5/16 IN, Housing Quartz. For Use With CH-2212-1C Portable Quarts Infrared Heater