Filter Services of Indiana offers nine styles of Synthetic Air Filter Media for use in air filtration systems of all types.

This broad spectrum of products is designed for use in Pad Frames, and is also available in bulk rolls for customers preferring to cut their own pads. Synthetic Air Filter Media is primarily used as a prefilter for more expensive final filters, often extending the life-cycle of these final filters by 50% or more. Other popular applications include gas turbine air intake systems, commercial/ industrial central air handlers, unit ventilators, fan coil units, or any system where fiberglass or other filtering materials are not preferred.


Regardless of system design, Koch offers a Synthetic Air Filter Media to meet the requirement.

Type SS5 is the standard 1⁄2″ media for use as a prefilter in 1″ applications. The media is solid white in color and is available in pads or 135′ bulk rolls. SS5 is completely dry to the touch. With a nominal loft of 1⁄2″ and a weight of 4 ounces per square yard, SS5 is an excellent media for use in 1″ frames and blanket installations.

Type SS10 is an all white, completely dry media consisting of polyester fibers. SS10 is the most versatile uses of any media in the SS series. The pad or blanket has a nominal loft of 1″ and a weight of 6 ounces per square yard. This media can be used as a prefilter in a 2″ frame or blanket installation where clean air and reliability are paramount. The media is available in pads or 90′ bulk rolls.

Type MD-10 is a nominal one inch, specially processed polyester media for 1″ applications. This media is an excellent all-polyester replacement for fiberglass in service applications or any situation where a polyester media is desirable. MD-10 is dry, light blue in color and has a weight of 6 ounces per square yard. It is available in pads or 90′ bulk rolls.

Type MD-20 is a specially processed polyester media which has the widest range of uses of any synthetic media on the market today. MD-20 is a nominal 11⁄2″ inches thick and consists of thousands of tough, durable fibers. Ideal for service applications as a superior substitute for fiberglass, MD-20 is available in pads or 45′ bulk rolls. The media is furnished without tackifier and is light blue in color.

Type SPT5 is nominal 1⁄2″ thick airlayed polyester media with a weight of 4 ounces per square yard. The media is white in color with a blue tint on the downstream side. This blue tinted area is treated with a dry tackifier to enhance dust holding capacity. The media is available in pads or 135′ bulk rolls. SPT5 is an ideal media for 1″ frame or blanket installations where upgraded dust holding capacity is needed.

Type SPT10 is an airlayed polyester media with a nominal thickness of 1″ and a weight of 6.8 ounces per square yard. This media has the widest range of uses in the SPT series. SPT10 is available in pads or 90′ bulk rolls and is white in color with a blue tint on the downstream side. An excellent media for 2″ frames, this media has a dry tackifier on the blue tinted side to enhance media performance.

Type SPT30 has the highest performance possibilities of any media in the SPT series. SPT30 is a 2″ thick airlayed polyester colored white with blue tint and dry tackifier applied to the air existing side. With a weight exceeding 11 ounces per square yard, SPT30 is effective in applications where media strength, durability, and dust holding are primary concerns. The media is available in pads or 45′ bulk rolls.

Type SPT-550 is a dual density “antimicrobial” all white media with dry tackifier on the downstream side. SPT-550 is a nominal 1” thick 15/45 denier fiber on the upstream side and 6/15 denier on the downstream side, needled media. SPT-550 comes in pads and slit-to-size rolls. This ultra loft polyester media is an excellent choice in applications where extremely high dirt loads and high efficiencies are required. Rolls are available in 84” x 90” master rolls.

Type STK10 is a nominal 1⁄2″ needled media which is ideal for use in paint spray booths exhaust systems, air washers and other blanket installations. STK10 is purple and red in color with a weight of 9 ounces per square yard. A major advantage of this specialty media is its ability to be cleaned, washed and reused without losing strength or efficiency.

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