8_7/8x33_5/8x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Garden Hygiene and Safety Calyx Magnum can also be

Calyx Magnum can also be used in foliar sprays

Optimize Coverage - 4ft × 2ft 1

Can-Fan® bring its innovation to market and sets a new standard for performance

Decrease risk of transplant shock

8_7/8x33_5/8x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Garden Hygiene and Safety Calyx Magnum can also beNordic Pure Custom MERV 7 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