Disposable Filters for SP-20/30 (100 Pieces)
Disposable Filters for Schiller SP-20/SP-30 Flow Sensor Spirometer. Comes with 100 disposable filters. For Single Use. Mouthpieces are sold separately, Refer to Part No. 2.100025
Calibration Syringe (3 Liter)
Calibration Syringe for use with Schiller's PC Spirometry, SP-1, SP-2, SP-10, SP-150 and SP-250 systems. Recommend calibration of units at least once a day.