Vostermans Multifan Greenhouse HAF Q Fan - 20 265/460v (5,100 CFM)

Vostermans Multifan 20 in greenhouse HAF fan The Vostermans Multifan 20 in Q fan moves up to 5,100 CFM in a tight, controlled HAF pattern. It mixes air without beating up the canopy. A 20-inch polypropylene impeller and optimized venturi shape the airflow. A 1/2 HP motor runs on 265/460V three-phase power. The white polypropylene housing casts little shade over plants. Greenhouse air circulation fan for humid hydroponic rooms An IP55 rating, totally enclosed aluminum motor housing, and Class F insulation rated to 140 F stand up to misting, wet floors, and frequent washdowns. A 20-inch fan pushes air about 50 feet, so growers space these fans 40 to 50 feet apart in serial or parallel loops. That even mixing holds temperature and humidity steady across the canopy. Variable speed dials in airflow, and auto-reset thermal protection guards against overheating. Sealed bearings and a light polypropylene impeller cut wear for a long service life. It meets upcoming ErP efficiency rules. Key Features 5,100 CFM HAF Airflow: Controlled horizontal pattern evens temperature and humidity without leaf flutter. 1/2 HP, 265/460V 3-Phase: Strong air movement with high energy efficiency and ErP compliance. IP55 + Class F to 140 F: Washdown-ready for misting, wet floors, and frequent cleaning. Polypropylene Impeller + Venturi: Focused airflow with low weight and reduced motor wear. Variable Speed + Thermal Protection: Dial in airflow with auto-reset overheat guard. ~50 ft Air Throw: Space fans 40-50 ft apart in serial or parallel HAF loops. Technical Specifications Specification Value Type HAF (horizontal airflow) fan Size 20 in Airflow Up to 5,100 CFM Air Throw ~50 ft Motor 1/2 HP Voltage 265 / 460V Phase 3 Impeller 20 in polypropylene Housing White polypropylene Motor Type TEAO, enclosed aluminum Insulation Class F (rated to 140 F) Ingress Protection IP55 Bearings Sealed, low-maintenance Speed Control Variable Protection Auto-reset thermal Compliance ErP