4'' Grow1 Booster In-Line Duct Fan ventilation/air-conditioning the relay is activated when

the relay is activated when the reading falls below the set point

• European-made VS K12 x 30s high temperature lamp holders

• Reduced product evaporation

including the right capacitors and transformers

4'' Grow1 Booster In-Line Duct Fan ventilation/air-conditioning the relay is activated when4" Booster In Line Duct Fan. Duct booster fans increase airflow in hard to ventilate rooms. They are durable, quiet, easy to install, and fit into metal or flex ducts. Their strong motors, excellent performance, and higher temperature ratings set these booster fans apart. Rated for both heated and cooled air and perfect for outdoor AND indoor use. 4 inch diameter Maximum cfm: 175 Maximum watts: 17w Maximum amps: 0. 15 Volts: 120 Hertz: 60