20x20_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Nutrients and Supplements - Allows you to save

- Allows you to save your strain

Operating Pressure: 4

250 mummies (SKU 1001001) is sufficient for 5000-25

Razor sharp 8" Carbon steel straight edge hooked blade provides powerful cuts & for cutting stems

This cover is comprised of plastic and closes tight around the tumbler

20x20_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Nutrients and Supplements - Allows you to saveNordic Pure Custom MERV 8 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