16x21x1 MERV 7 AC Furnace Filters 6 Pack growing-media There are four precision thermal

There are four precision thermal probes included

Late blight (Phytophthora infestans)

• Insulation: Class II

SUPERthrive Bloom 3-12-6—Advanced Flowering & Fruiting Formula

plant roots will grow under and through the Mats where moisture remains between flood cycles

16x21x1 MERV 7 AC Furnace Filters 6 Pack growing-media There are four precision thermalNordic 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