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* Operating temperature of knob/guide tube assembly: -65 to 250 deg F
Custom Engraved Knobs:
Custom laser marking of the knobs is available for $25.00 per knob. Receive a $15.00 discount for each additional knob with the same design. Please call Randy at 866-920-2741 ext. 289, or email him at customparts@mcfarlaneaviation.com for details.