ABS刃は管ファン2の速度モーターIP44 100mm換気を静める

HVAC Greenhouse PP Shell ABS Blades 2 Speed Motor 100mm Ventilation Inline Duct Fan for Bathroomm, Kitchen and Hospital Features: The shell is made of polypropylene plastic, one-time disposable molded, with high anti-acid ability. The impeller is made of ABS, designed by hydromechanics to reach the optimal air and pressure. Two-speed motor, Japanese brand NMB ball bearing, its life expectancy up to 50,000 hours. IP44 protection class, waterproof and dustproof more effective.