14x25x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack drying-racks This mask covers the mouth

This mask covers the mouth

Displays pH & EC simultaneously

A high quality product of Zenport

and mounting screw set

Each bag includes a red indicator dot for proof of sterilization

14x25x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack drying-racks This mask covers the mouthNordic 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