American Air Filter 383-800-601 20" x 25" x 1" Cut-N-Fit Natural Fiber Pads (12 Pack)

American Air Filter 383-800-601 20" x 25" x 1" Cut-N-Fit Natural Fiber Pads (12 Pack)American Air Filter 383-800-601 20" x 25" x 1" Cut-N-Fit Natural Fiber Pads (12 Pack) Features:•Natural fiber pads are made up of a rigid sheet of resin coated media with a net backing•Fibers are composed of 50% coconut fiber and 50% hogs hair•Used as customizable furnace filters in residential central heating and air conditioning systems•20" x25" x 1"
john milnor collected papers volume 1 geometry collected