17_1/8x26_1/2x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack grow media The 4-inch long aluminum handle

The 4-inch long aluminum handle offers a 2

5-inch non-slip grips

[Pallet of 36]

5 to 1 inch in height from the base for 5 to 20 seconds for softwood plants and 10 to 30 seconds for hardwood plants

17_1/8x26_1/2x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack grow media The 4-inch long aluminum handleNordic 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