30x36x2 Geothermal MERV 8 Pleated Plus Carbon AC Furnace Air Filters 3 Pack meters-&-solutions In their default off position

In their default off position

pH levels outside recommended ranges can lead to nutrient lockout and nutrient deficiencies resulting in stunted growth and poor appearance

The minimum and maximum “limits” can be set on the Aqua-x providing 24/7 notification of pH / EC or temperatures that are out of limits

Evening or very cloudy conditions are the best time to apply

30x36x2 Geothermal MERV 8 Pleated Plus Carbon AC Furnace Air Filters 3 Pack meters-&-solutions In their default off positionOur Geothermal MERV 8 Plus Carbon odor control air filters are made with a 1 piece frame for strength and stability so no taping, stapling or gluing filters together. The sturdy one piece frame and extra material makes it a high capacity filter which really enhances its performance. Nordic Pure's Geothermal MERV Pleated Plus Carbon air filters work with your geothermal heat pump system to remove airborne particles and help eliminate odors in your home