20x25x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack Misc Select your tumbler options to

Select your tumbler options to suit your needs

Features a CNC-machined anodized aluminum frame with a modern brushed black finish

True Liberty Bags are made in the USA

simply switch out the DBT tumbler with the Kief Filter Screen tumbler and run the trim from your trim bin through it

the alarm configuration is switchable from a normally-closed to a normally-open state or turned off during maintenance

20x25x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack Misc Select your tumbler options toNordic 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