Air Filters Made in the USA. Free S&H on most products to most of the mainland US.

Bonded Aluminum Round Filter / Attenuator

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Bonded Aluminum Round Filters

Available in 1/8", 1/4", 1/2", & 5/16" thick 

Doubles as Attenuator - for sensitive electronic equipment. These filters can provide protection from electromagnetic and radio frequency interference as well as from airborne contaminants. The filtering media doubles as an EMI / RFI attenuator and air cleaner. 

Bonded Aluminum has Many Uses - such as in ceiling fan vents, auto air conditioners, bus and truck heaters, central air conditioners, computer environment systems, electronic air cleaners, electronic equipment ventilating windows, farm cab air conditioners, heating equipment, kitchen air exhaust and recirculating sytems, range hodd fans, room air conditioners, and wall heaters. 

Filters are built to exact size. If you need nominal size, send us a message. 

Construction: Frame is formed aluminun channel, securely connected with heavy rivets. Filtering media shall be bonded aluminum "fits" material that is made of many layers of baffles, bonded together to make a solid pad. Holding capacity tests at 90.8g/ft with an average arrestence of 71.5%. Resistance when clean is .04 w.g. at 350 FPM.

Material: Filtering element is processed from bonded aluminum. Frame is made from sheet aluminum 3003-H16 .025 thickness.

Maximum temperature - 225 degrees F