HEPA filter for Miele vacuum cleaners. Compatible with: S300, S301, S310, S311, S313, S314, S315, S316, S318, S321, S322, S323, S324, S326, S328, S334, S336, S338, S342, S344, S346, S347, S348, S356, S400, S401, S408, S420, S421, S422, S424, S426, S428, S434, S436, S438, S442, S444, S445, S446, S447, S448, S456, S458, S500, S501, S511, S512, S513, S514, S516, S518, S524, S526, S528, S534, S536, S538, S544, S548, S556, S558, S612, S624, S626, S628, S634, S636, S638, S644