Works for the Respironics System One 50 REMstar Plus with C-Flex CPAP.
Please note that there are two variations of the PR System One devices as identified by the 2.XX designation on the machine label. When ordering be sure the correct variation of the PCA is for your device.
Devices manufactured prior to November 15,2010 use the PCA 1061228 There is no 2.XX annotation.
Devices manufactured on or after November 15, 2010 are marked with the 2.XX and use this 1079247 PCA.
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