Plug the pump into a timer so as to run only while lights are on (plants only use CO2 during photosynthesis). The pump has high and low settings -- on high the bucket may last only 70 days. Place the output tube directly over plant or behind a circulation fan. Seal the environment for maximum effect. 25 ft and 50 ft Spray Kits sold separately for multiple plants and unsealed grow environments.
— Ships via UPS from Landenberg, Pennsylvania USA.