25x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Sea Green Weight: Size: 11x9x5

Weight: Size: 11x9x5

0-hour PHI

Super Nitro Bat Guano is fast acting and is so powerful it should be used carefully and sparingly

it also has an exceptional amount of calcium

The natural materials are all FDA food grade and GRAS (generally recognized as safe) materials

25x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack Sea Green Weight: Size: 11x9x5Nordic 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