Combination cooler/filter uses efficient "Heat Sink" configuration to dissipate the excessive heat build up in racing transmissions Made of aluminum with 500 sq. inches of radiation surface for high heat transfer Filter with magnet removes all wear particles over 4 microns in size Dimension: 3" in diameter, 12" in length, and weighs only one pound Very easy to install; not recommended for street use Comes complete with filter cartridge and all necessary installation instructions