TEL390S L Class Dust Dry Vacuum Cleaner - Numatic TradelineTEL390S L Class Dry Vacuum With Numatic TradeLine TEL390S L Cass Vacuum cleaner provides a large clean up machine for use in the workshop or on the jobsite that is made for work and to work hard. TradeLine is equipped with a high efficiency power head, a complete accessory kit, and a sizable 18L capacity. TradeLine is designed with a HEPA H13 filter, a TriTex filter, HepaFlo Filter Bags, and proprietary AirFlo technology, and it offers L Class