Active Air CO2 Replacement Regulator for Hydrofarm CO2 System cloning-and-seed-starting Digital display features a clock

Digital display features a clock

Mix: 1/2 oz/gal of water for flowering plants and 1 oz/gal for veg

Can be used as often as every watering

Trim Fast's advanced action works in two ways: it contains a food grade* lubricant which fills the microporous surface of your cutting blades and creates a smoother

choking out all biological activity

Active Air CO2 Replacement Regulator for Hydrofarm CO2 System cloning-and-seed-starting Digital display features a clockThis product is a replacement part for the old style HF COSYS, and is not a complete unit system. CO2 is an odorless, invisible, and non flammable gas. The average level of CO2 in the atmosphere is about 300 ppmv (parts per million). If the level decreases down below 200 ppmv in an enclosed growing area, plant growth slows to a halt. Through the years of testing and research, the optimum enrichment level of CO2 for plant growth has been established at