20x25x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack X Nutrients Par Value (PPF) - 189

Par Value (PPF) - 189

The Merlin Garden Pro will deal with up to 98% of microorganisms

This product will not tear easily like other mylars

– Elite 91 SILICIC ACID serves as an effective surfactant and does not require any additional wetting agents for proper penetration and/or absorption

The ExHale Original comes with a freshness seal that doubles as a hanger

20x25x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 6 Pack X Nutrients Par Value (PPF) - 189Nordic 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