17x27x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack grow-light-reflectors Razor-sharp and perfectly balanced for

Razor-sharp and perfectly balanced for quick cutting action

Flower Finisher is intended to increase terpene profile and aroma while adding natural weight and density

Improves food nutrient density

Our new heavy duty modular commercial heat mats will provide uniform heat for hundreds of seedlings or cuttings

Construction - Ball Bearings / PP / ABS

17x27x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack grow-light-reflectors Razor-sharp and perfectly balanced forNordic 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