Method Seven HPS Perfect Color Plus Crystal Glasses 4' x 8' BPA-free material

BPA-free material

Whether you want to improve airflow in a grow room or need enhanced humidity control in an industrial setting

It also means nothing on a packet tells the person at the far end when it is finished

a pack of 25 robust bags designed to cater to the diverse needs of both household hobbyists and commercial-level growers

Accuracy: ±8% V/V *Accuracy determined in a controlled environment with multiple substrates

Method Seven HPS Perfect Color Plus Crystal Glasses 4' x 8' BPA-free materialMethod Seven HPS Crystal Glasses for Color Correct Vision Designed for growers working under high pressure sodium lighting, these HPS Crystal lenses use premium German mineral glass to filter harsh spectra and restore natural color. That means easier scouting for leaf issues, pests, and nutrient imbalances with unmatched visual clarity. Mineral Glass Lenses with UV & IR Protection The scratch resistant mineral glass is easy to clean and stays clear