●Integral mounting flanges with frist-fit keyhole slots;six duct sizes available
科学的风轮设计，风量风压更优秀
●Rated two pole external rotor motor with lubricated bearing
优质轴承，电机运转更平稳
●IP44 protection
IP44防水等级
●swing out door for periodic inspection and service access
检修口的设计便于安装及维修
●Silencing Cotton decrease the noise
超薄设计，安装空间更灵活
