Photo 1 of Feekoon Quiet Smart Register Booster Fan with Thermostat Control, 4" x 10" AC Vent Booster, Increase Airstream from Registers (1 Pcs)

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Photo 1 of Feekoon Quiet Smart Register Booster Fan with Thermostat Control, 4" x 10" AC Vent Booster, Increase Airstream from Registers (1 Pcs)Photo 2 of Feekoon Quiet Smart Register Booster Fan with Thermostat Control, 4" x 10" AC Vent Booster, Increase Airstream from Registers (1 Pcs)