Best Home Furnaces

MANUFACTURERS INFO: Two layers of heavy expanded aluminum, pleated together with a piece of polyurethane foam between make the Foam Filter With 40% more surface area than a regular air filter, this permanent filter is designed for years of filtering the smallest of particles. The PERM-A-FOAM Aluminum filter is a permanent air filter designed for furnaces, air conditioners, air handling units and computer applications where smaller particles of dust and dirt are needed to be removed from the air. The perfect solution for eliminating the need for purchasing a new filter each time it comes times to change the filter. Since it is corrugated, there is 40% more surface area than a normal air filter, allowing the filter to capture more dust and contaminants without having to clean the filter as often as you would be replacing a throwaway filter. CONSTRUCTION - The air filter media shall consist of 20 PPI polyurethane foam, 1/8" in thickness. It shall be non-allergenic, nontoxic, with a green coloring and corrugated between two pieces of .020 expanded aluminum, held together in a way it won't come apart without considerable effort. This filter pad will be enclosed in a .037 Aluminum Frame, commercially known as 3003- H4, roll formed to give it extra strength. The one piece frame is held together with heavy rivets at one corner. The filter shall retain 290 grams of dust per 2.25 sq ft (20x20 filter). Resistance when clean is 0.05 wg at 350 FPM air velocity. Maximum resistance at capacity is .335" w.g. A cost effective approach to filtering air, the PERM-A-FOAM is permanent and will last for years when properly cared for. This filter will fit into any existing furnace. There is no need for expensive equipment to filter the finer particles of pollen, dust, and other contaminants that are found in the air as this filter has a higher efficiency than the throwaway filters that are available. NOTE! AS WITH MOST STANDARD FILTERS, FACE SIZE IS 1/2" LESS THAN SHOWN!