15x24x1 Exact MERV 8 AC Furnace Filters 6 Pack AIR FILTER BOXES This layer blocks harmful rays

This layer blocks harmful rays from breaking down your plant’s organic matter and causing loss of potency during long-term storage

It also provides "Xtra" flexibility

When used as a soil drench

The FloraFlex® Matrix System is a patent-pending first-of-its-kind Top Feeding Wicking System that provides the most even way to deliver water and nutrients to your potted plants

foremost being the flexibility to allow the propagator to easily select the exact concentration desired for each type of cutting

15x24x1 Exact MERV 8 AC Furnace Filters 6 Pack AIR FILTER BOXES This layer blocks harmful raysNordic Pure MERV 8 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 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters