The Dirt Trap enhances the use of your CT 22 for wet extraction by providing a removable container for the clean and efficient disposal of liquids. Fits into CT 22 dust extractor just as a filter bag, allowing you to empty wet contents without the need to lift or manuever the entire CT unit. Made from high impact ABS plastic. Includes a top cover with fine mesh stainless steel screen to keep large particles from clogging the final filters. Should be used in conjunction with Wet Filter Elements (452924), to prevent damage to Standard, or HEPA filters.