9_3/4x23_3/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Tubing Organic & Conventional Compatible –

Organic & Conventional Compatible – Approved for use in both certified organic and conventional growing programs

lightweight design

Staples and blade required

Not only is there a more balanced PAR

Qty: 50 pre-cuts/box

9_3/4x23_3/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Tubing Organic & Conventional Compatible –Nordic 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