14x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack hawthorne New Disposable Face Masks are

New Disposable Face Masks are currently only available in packs of 50 and are only available in California

and can easily be cut to fit any size

The minimum and maximum “limits” can be set on the Aqua-x providing 24/7 notification of pH / EC or temperatures that are out of limits

One is for turning the meter on/off and the other for automatic one or two point calibration

blue disposable shoe covers help protect shoes and surrounding environments from dust

14x25x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack hawthorne New Disposable Face Masks areNordic 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