USED - Small paint chip at left rear screw hole. No manual. Fully functional. 

• [Isolate Interior from Exterior Air] - AIR CURTAIN IS NOT AN AIR CONDITIONER, IT WON’T GENERATE COLD AIR. Save energy by keeping the conditioned air inside and blocking 90% of heat/cold air, dust, smoke, etc. You still need to turn on your air conditioner, air curtain is not to replace an air conditioner. Fireproof and anti-erosive powder coated metal case, easy to clean slim body.
• [Magnetic Switch] - 2 pieces of magnets have no direct contact, won’t be damaged by a door slamming. The magnetic door switch installation is much easier than the traditional mechanical plunger switch. 12VDC is safer and no hard wired required. It works even the door closer is not working well, just install at the closer distance while the door is closed.
• [2 Speeds] - super powerful high speed at 1177 CFM, 58dB, low speed at 942 CFM, 56dB. 120V 60Hz 300W (0.4HP, 3.13A), less power consumption than other industrial air curtains. Adopting the technology of German electrical machinery, it continuously runs for business hours. 1 motor and 2 ABS Fan Wheels.
• [Easy Installation] - Refer to Technical Specification User Manual, installation should be easy. 1) mount the detachable mounting plate securely. 2) hang the air curtain up. 3) install the optional magnetic switch and connect to the dedicated 2 wires. With magnetic switch installed, automatically turn on the air curtain while the door is open.
• [1 Year Warranty, Professional Tech Support] - Free parts, repair or exchange within 1 year. Awoco high quality product reputation and supreme customer service is a guarantee. Dimensions: 35-1/2” L x 8-5/8” D x 10-3/8” H. Weight: 33.1 LBS. UL Certified.