AIR FILTER Compatible WAP Vacuum Cleaner Models: SQ650-71 Attix 30-01PC Attix 30-11PC Attix 30-21PC Attix 751-11 Attix 751-21 Attix 751-6 MEASUREMENTS: Outer diameter 185 mm Inner diameter 142 mm H 140 mm Reference Code: 21-813 Original Code: 15475 Wap