Material:Cold Pressing Aluminum Alloy;Weight:0.83kg;Packing No:10SETS
The function of this ventilator is to keep the inside and outside pressure to be balanceable, even the inside temperature is under 0°C and to ensure opening or closing the door smoothly.
With a stainless steel fltrating net, which prevent the Insect from entering.
AC200V. AC1 10V or 36V is on your option.