Becker single-stage side channel blower vacuum package with IE3 premium efficiency 12.1 HP, 230/460v, 60 Hz, 3-phase, TEFC (IP55) motor. Standard features include heavy duty construction, integrated inlet and discharge silencers for quiet operation, and a UL/CSA listed motor with class F insulation. This fully-assembled, high-quality blower package is complete with an inlet vacuum filter, relief valve with filter, and vacuum gauge.