Atmosphere Backdraft Damper Options:8" Backdraft Damper Research Facilities – Six spectral

Research Facilities – Six spectral options allow scientists to isolate specific wavelength effects on plant morphology

5 lbs 36½” x 17½” x 6½” 11 lbs 1

These Dual Arc lamps are engineered specifically for use with both magnetic and electronic ballasts

Because the container is white

A small amount of TerraVesco Vermicompost goes a long way

Atmosphere Backdraft Damper Options:8" Backdraft Damper Research Facilities – Six spectralAtmospheres all new galvanized steel backdraft dampers fit directly into the duct, simplifying installation. They feature a shaft for each of the two flaps, which prevents jamming. Also, the flaps close onto a perimeter gasket, ensuring the best air seal and quiet operation.