Available in OEM packs of 1, 2 or 6 from Respironics OEM or, 1, 2, 6 or 50 packs of our high quality VALUE Brand. These replacement disposable ultra-fine filters only fit the Respironics REMstar System One, M Series of CPAP and BiPAP, SleepEasy CPAP, BiPAP C Series and BiPAP A30/40. They are similar in shape to the larger size version for the REMstar CPAP and BiPAP, but are not interchangeable. Ultra-fine Filter 1-3/4" x 7/8" (44.5 mm x 22.2 mm) not including tab.
Note: When Philips Respironics introduced the System One series they modified the disposable ultra-fine filters of the M series by removing the tab on the filter so the same filter can be used on both of these series.