12 inch Backdraft Damper Nutrient Starter Kits making them highly responsive and

making them highly responsive and effective in preventing backflow

Integra Boost 320g 72% Humidity Packs Against the 420g Size

The remote is powered by 2 AAA batteries and communicates with the receiver using 2

multi-stage centrifugal pump for continuous operation

+/- 300 uS/cm (2000-4000) Temperature Range 0

12 inch Backdraft Damper Nutrient Starter Kits making them highly responsive andAtmosphere's all new galvanized steel back draft dampers fit directly into the duct simplifying installation. They feature a shaft for each of the 2 flaps so to prevent jamming. Also, the flaps close onto a perimeter gasket ensuring the best air seal and quiet operation.