17_1/4x17_1/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Lighting & Electrical Components Works well in soil or

Works well in soil or hydro

I comes in two easy-to-use formulations: a wettable powder and a granular

It is at this step

all our greenhouse material repair tape is coated with a high-tack acrylic adhesive intended for even the toughest repairs

Short and open circuit

17_1/4x17_1/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Lighting & Electrical Components Works well in soil orNordic 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