14x25x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack hydro-x metals and trace elements which

metals and trace elements which are naturally found in healthy soil and vegetation

Offers silent operation

5"W x 23" Weight: 10

The MC720 Kit - Comes with the MC122 pH controller and MP810 dosing pump

Whiteflies (Hemiptera sp) and Plant Parasitic Nematodes such as Burrowing (Radopholus similis)

14x25x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack hydro-x metals and trace elements whichNordic 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