12x25x2 Pleated MERV 7 Air Filters 12 Pack reflectors and grow lights and sports a two-toned blue

and sports a two-toned blue and white steel housing

It's one component of Rx Green Solutions' scientifically developed 4 Part Professional Nutrient Series — a system built around patented technologies that optimize how plants absorb and utilize phosphorus during the critical reproductive stage

but is can also be applied directly to plants to prevent/treat/control plant diseases and algae growth

Get double the grow room assistance with this waterproof alternative to metalized film

Application Uses: May be used indoors/outdoors with all hydroponics

12x25x2 Pleated MERV 7 Air Filters 12 Pack reflectors and grow lights and sports a two-toned blueNordic Pure MERV 7 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters