FIRE SENSE 61983: To assure best replacement, compare your current thermocouple to the photo. If you have questions please contact our Customer Service. PREMIUM QUALITY GLASS TUBE: Replacement glass flame tubes are available in multiple sizes, so if you are unsure whether this is the correct part for your heater, please contact our customer service department and they can assist you in making the selection. IDEAL FOR OUTDOOR SPACES: This replacement for the glass flame tube perfect for outdoor gatherings you want to have during the winter. With built in safety features and strong, durable construction. FEATURES: 49-3/8"L | One piece glass tube | Includes rubber ring | Fits Flame Heater models 60523 & 62263 ASSEMBLED DIMENSIONS: 3-5/8" Diameter inside, 3-7/8" Diameter inside | This glass tube is very easy to assemble. › See more product details