AIR FILTER Compatible Vacuum Cleaner ALTO Models: EC380-E turbo XL turbo XL25 turbo 1001AE turbo 1001AE-F SQ450-11 SQ450-21 SQ450-31 MEASUREMENTS: Outer diameter 185 mm Inner diameter 142 mm H 140 mm Reference code: 21-813 Original code: 15475 ALTO