Ventilator (Air Pressure Adjustment Valve) FE-604

[Features]
· Intake and exhaust efficiency has been improved by 40% or more compared with conventional ventilator FE-603.
· Adjusts the air pressure in warehouses using the contraction or expansion that occurs during freezing, defrosting, etc. Comes with a heater for freeze prevention (uses an overheating prevention mechanism based on a thermostat). Also comes with an insect-proof net. The power cord reaches outside of warehouses for easy installation. A sliding type, enabling the panel thickness to be freely adjusted in a range of 85 mm to 150 mm. The surface louver is made of polypropylene to prevent dents, etc., during transport.