30x30x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack spl_magfan Coco substrate is light and

Coco substrate is light and stable and is one of the best mediums for providing oxygen to the roots of growing plants

UV quartz sleeve for BIGboy system

mammals and omnivores requiring high protein

Double-ended K12 x 30s lamp holders

30x30x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack spl_magfan Coco substrate is light andNordic 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