18x27x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack grow media this mix is intended to

this mix is intended to dry quickly and accept immediate feeding

Indoor Cultivator

000-hour service lifetime means less frequent lamp replacements - reducing labor and operational expense

Updated locking signal and data cables

Pennsylvania

18x27x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack grow media this mix is intended toNordic Pure Custom MERV 12 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