18x27x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Odor Control 75-Inch Straight Blade reduces cutting

75-Inch Straight Blade reduces cutting effort while providing precise clean cuts

• Safe for use around plants and grass

The light controller is backed by a hassle free 3 year warranty

• Environmentally benign

●【High Reflective&Noise Free-fanless light boards design】will make your growing life easy and quiet

18x27x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Odor Control 75-Inch Straight Blade reduces cuttingNordic 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