Flat concertina filter element, for wet/dry vacuum cleaners, with cellulose fibre. Supplied = assembled. Category = cleaning. Product type = filters. Material = cellulose. Very economical to use. Suitable for vacuuming up fine dust in dust classes L and M. Made from cellulose fibre material. Suitable for all single motor NT-Tact and Ap models made by Krcher, and made of cellulose fibre material: the Dry flat concertina filter convinces with a dust separation efficiency of 99.9%, certifications for dust classes L and M, and its suitability for safely vacuuming up dry fine dust and coarse dirt. To avoid mistaking it for a different filter, the Dry model features a green label. If liquids are drawn in, the filter must be dried after use to maintain its suction capacity. Suitable for NT 25/1, NT 30/1, NT 35/1, NT 40/1, NT 45/1, NT 50/1, NT 55/1, NT 611