Method Seven RESISTANCE HPS Environmental Controllers the charcoal is carefully packed

the charcoal is carefully packed to ensure consistent and even air flow throughout the carbon bed for full use of the filter

Magnesium Sulfate

AnthoSpec: 190 μmol/s

This unit features 240V industrial-grade NEMA 6-15 UL-listed power outlets

Method Seven RESISTANCE HPS Environmental Controllers the charcoal is carefully packedMethod Seven designs high quality glasses and photo filters for indoor and outdoor growing environments. Our grow room glasses provide true color in bright lighting and are optimized for each of the standard grow lighting spectrums. Lens Technology Perfect Color HPS grow room glasses are the go to optical tool for indoor horticulture under high pressure sodium lights. These mineral glass lenses are infused with rare earth elements to filter the grow