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Introducing the world's first HPS lens filter
the monkey fan hook allows you to attach it quickly to virtually every type of grow tent pole as well as PVC (commonly used to stretch trellis across canopies)
and enjoy watching your yields increase as your temperatures decrease
Puts Control at Your Fingertips
Green bugs
14x18x1 MERV 14 AC Furnace Filters 6 Pack Extension Introducing the world's first HPSNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.