Replacement Filters: Particle and Impregnated Charcoal Filter Kit: FKA3 Contains: 3 x IFA3 particulate filters and 1 x CHA3 Charcoal filter designed for containment of particulate overspray and low level solvent odour.Suitable for use with the Bench Vent units BV300S and BV200HDimensions:IFA3 Particulate Filters - 495 x 372 x 23mmCHA3 Charcoal Filters - 495 x 372 x 15mm