MTI Corporation provides the high-purity quartz tube as a replacement part for high-temperature tube furnaces in universities, companies, and national labs. It can be used at operating temperatures up to 1200ºC. Purchase Notes: Please make sure the specification of the tube meets your needs before making a purchase. All tubes are not refundable, not exchangeable, nor covered under the warranty (Consumables), and we do NOT accept return delivery of any tubes due to the fragile nature of the materials. We apologize for the inconvenience. Please check the package for damages before accepting the delivery. For more information, or if damaged upon arrival please contact us.SPECIFICATIONS O.D 50mm ±0.5mm (1.97") I.D 44mm ±0.5mm (1.73") Tube Length 600mm (24") Max. Operating Temperature 1200ºC Application Notes Vacuum pressures may only be safely used up to 1000°C The flow rate for gases should be limited to