10x20x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 12 Pack double-ended | Blue = 405

| Blue = 405

Leafhopper (Circulifer tenellus

Increase Yield per Lamp up to 50%

(For best results

(2) RAW Potassium - 8 oz

10x20x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters 12 Pack double-ended | Blue = 405Nordic 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