Product Description:
Intake Shutter Vent (for use with Exhaust Fan) allows controlled airflow through greenhouse.
16" In-Take Shutter Van: recommended for RIGA 2, 3, 4; works best with VC115-C thermostat controller. Unit requires a 16.25" x 16.25" opening. Usually positioned in a high location in the lowest panel in the front wall. Comes pre-wired with 9 feet plug-in power cord.
20" In-Take Shutter Van: recommended for RIGA 5, VI 34-46; works best with VC115-C thermostat controller. Unit requires a 20.25" x 20.25" opening. Usually positioned in a high location in the lowest panel in the front wall. Comes pre-wired with 9 feet plug-in power cord.
24" In-Take Shutter Van: recommended for RIGA XL series; works best with VC115-C thermostat controller. Unit requires a 24.25" x 24.25" opening. Usually positioned in a high location in the lowest panel in the front wall. Comes pre-wired with 9 feet plug-in power cord.