21_1/4x23_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack soil Make the most out of

Make the most out of your Active Air filter with a corresponding Active Air pre-filter

Root Pouch Charcoal Line is a 150g/m2 single-use fabric for commercial hydoponic grow rooms Root Pouch is the only fabric container company that offers natural fiber blended fabrics

This lamp can be used in the following ways:

The premium growing granules expand up to 7 times in volume when hydrated

21_1/4x23_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack soil Make the most out ofNordic 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