AIR FILTER for KARCHER vacuum cleaner compatible models: NT361 Eco NT361 Eco BE NT361 Eco M NT361 Eco TE NT561 Eco NT561 Eco M NT561 Eco TE NT611 Eco NT611 Eco TE MEASUREMENTS: 239 x 140 x 56 mm Reference Code: 21-822 Original Code: 6.904-206.0 KARCHER