Modified mount & evaporator to accept new style fan on MBT Walk-In Freezer. Security bit broke upon install. Note; fan blade is much larger than existing. It is very tight to fan guard. No guarantee that with swelling & contracting of metal due to temperature variations that blade won''t start hitting but blade is plastic so should wear in if it does. Unit is running, cooling & nothing is hitting or rubbing @ this time. **** Billing travel but not mileage****