Method Seven HPS Perfect Color Plus Crystal Glasses Color:Black you can rest assured that

you can rest assured that your plants' root systems are free from harmful substances and fully prepared to receive the nutrients they need to reach their maximum potential

particularly lead

Its compact

12" diameter

and chemically inert for safe use in any growing environment

Method Seven HPS Perfect Color Plus Crystal Glasses Color:Black you can rest assured thatMethod 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