Philips Respironics Remstar CPAP, M-Series Foam filters

Reusable Remstar M-Series Foam Filter. For use with the Respironics with PR System One, Remstar Plus C-Flex, Remstar Auto A-Flex, BiPap Pro Bi-Flex, BiPap Auto Bi-Flex, Remstar Pro C-Flex, BiPap Pro Bi-Flex, SleepEasy with C-Flex and SleepEasy (Compare to Respironics #1035443 or #1063091) Philips Respironics Compatible REMstar, M-Series Foam, CPAP Replacement Filters