16x36x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack Plant Care/Pest & Disease Control QPlugs provide more air porosity

QPlugs provide more air porosity for better roots and provide more water control than anything else on the market

Saves time feeding

Delivering an average of 295 µmol/m2/s over a 2’4’ area

and its dishwasher-safe construction means easy and quick cleanup

when iron deficiency is present

16x36x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack Plant Care/Pest & Disease Control QPlugs provide more air porosityNordic Pure Custom MERV 10 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