Phason Natural Ventilation Control (NVC-2) USA Hand sanding details with whiskering

Hand sanding details with whiskering on front & back legs

aluminum/copper

Vulcanized construction is 100% waterproof

the StrongArm Winch’s spur gear system is much more efficient

Phason Natural Ventilation Control (NVC-2) USA Hand sanding details with whiskeringPhason's Natural Ventilation Control (NVC 2) automatically controls the temperature in a room by operating a curtain machine and heater or furnace according to your programmed settings. Controlling a Curtain Machine: When the temperature is within the idle band, the NVC 2 maintains the curtain position When the temperature rises above the idle band, the NVC 2 opens the curtain for the on duration and then pauses for the off duration After each off