Can-Filters has designed and built these mini Can-Lite filters for convenience and long life. They feature a plastic housing and a bayonette style, twist-lock mount. 100% Australian Granulated carbon. Plastic Can-Lite filters are available in 3 sizes with a CFM range of 89 - 500. Plastic Can-Lite is manufactured in a dedicated carbon filter plant in Holland. Technical Data: Max Exhaust CFM: 300 m³h / 177 cfm Max recirculating (Scrubbing) CFM: 600 m³h / 353 cfm Prefilter: Yes Outside Diameter: 145 mm / 5.5" Height: 453 mm / 18" Total Weight: 3.7 kg / 8.1 lbs. Carbon Weight: 2.1 kg / 4.84 lbs. Carbon Bed Depth: 1.25" Housing: Plastic Max Operating Temp: 80ºC Max Humidity: 70%