20x24x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 12 Pack veg nutrients Calcium for the base of

Calcium for the base of every feed

The RS series all utilize the extremely reliable external rotor motor and reverse curve blade

• 100% safe to use around plants during their night cycle

Woven poly greenhouse covers like Duramax 200 offer a number of benefits that nonwoven counterparts do not

20x24x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 12 Pack veg nutrients Calcium for the base ofNordic Pure Half Inch Ring Panel AC Furnace Air Filters consist of an internal frame bonded between flat layers of two different types of electrostatically charged HVAC furnace filter media. The first layer is a high capacity, polyester filter material which acts as a pre filter, capturing large airborne particles. The second, more efficient, layer is a MERV rated smooth poly blend filter material. The electrostatic charge works as a magnet to draw in