16x18x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack soil nutruient Folded and rounded corners

Folded and rounded corners

The steel enclosure houses three dual-ball bearing blowers that pull heat out of the component and exhausts out the rear

The non-refillable Bluelab Soil pH Probe is used to measure the pH levels of soil or media of cropping

120V input & output voltage

HINGED GLASS & STEEL CLAMPS

16x18x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack soil nutruient Folded and rounded cornersNordic 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