16x18x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack house and amp Plenty for the hobbyist

Plenty for the hobbyist

Lighter in weight compared to the traditional T8

identification and counting

Moderate pH

Mini-Sachets/Sachets on Sticks: Apply one sachet per propagation tray or plant

16x18x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack house and amp Plenty for the hobbyistNordic 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