15x23x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting hardened and tempered with highly

hardened and tempered with highly sharpened Teflon coating for easy clean up

Proper hydration of pH probes is vital to maintain wick

10 Outlet Air Divider Included

• A significant component of DNA

Gorilla Grow Tent High CFM Kit for GGT1010

15x23x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting hardened and tempered with highlyNordic Pure Custom MERV 13 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