16_1/4x21_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Gardening Accessories eliminate the hassles and worries

eliminate the hassles and worries of spilling

1 g accuracy

Each tent comes with a height extension kit that allows you to increase growing height by 12”

All fittings included

Photosynthesis Plus is a novel culture consortium that contains stable microorganisms capable of improving plant conversion of carbon dioxide to available carbon to fuel plant requirements

16_1/4x21_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Gardening Accessories eliminate the hassles and worriesNordic Pure Custom MERV 14 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition