Replacement cartridge Filter Kit Compatible with SoCleaner 2 CPAP Cleaner and Sanitizer

OEM Welcomewith the black ringEConOMICAL SC FILTER KIT - Our Cartridge Filter Kit for SC 2 includes four replacement cartridge filters(blue plastic filter box excluded),one replacement check valve.BENEFIT OF REPLACING CARTRIDGE FILTER - The cartridge filter can better absorbs ozone released and converts activated oxygen back to regular oxygen as it leaves your SC chamber.BENEFIT OF REPLACING CHECK VALVE - The check valve can avoid water from your CPAP machine damaging your SC machine and better protect your cpap cleaner and CPAP machine.BENEFIT OF REPLACING SC ACCESSORY - The consistent change of the SC 2 cartridge filters and check valve can keep your SC running at top performance and prolong the quality of your machine through preventative measures.