Available in packs of 2 from both, Respironics or, our high quality Value Brand.
These replacement disposable ultra-fine filters fit the following Respironics BiPAPs - Synchrony, Pro, Duet LX, Harmony. They are similar in shape to the smaller size versions for the REMstar CPAP and BiPAP, but are not interchangeable.
Ultra-fine Filter 4-3/4" x 3-1/4" (120.7 mm x 82.6 mm).
