17_1/2x21x1 Exact MERV 12 AC Furnace Filters 6 Pack bloom nutrients R4 AQUAPONIC SYSTEMS are hand

R4 AQUAPONIC SYSTEMS are hand crafted and built in Northern California

making it a versatile addition to any grow operation

The product's packaging allows for easy pegboard-style display

The ingredients in SNS 203 are processed in-house by Sierra Natural Science to ensure consistency and full potency in each batch

The geotextile fabric is made from BPA free plastics

17_1/2x21x1 Exact MERV 12 AC Furnace Filters 6 Pack bloom nutrients R4 AQUAPONIC SYSTEMS are handNordic Pure MERV 12 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, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different