16_1/2x21_5/8x1 Exact MERV 13 AC Furnace Filters 6 Pack microbial fertilizer Use pHyre with any nutrient

Use pHyre with any nutrient system calling for microbes including Vegamatrix

Made of naturally composted materials

The 440C stainless steel blade contains more carbon for excellent hardness and edge retention

Features a stainless steel locking ratchet to adjust the rope’s length

Unlike common AC-powered duct fans that suppresses voltage to control fan speeds

16_1/2x21_5/8x1 Exact MERV 13 AC Furnace Filters 6 Pack microbial fertilizer Use pHyre with any nutrientNordic Pure MERV 13 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, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200