Description Schiller SP-20 / SP-30 Flow Sensor Cardboard Disposable Mouthpieces Schiller SP-20 / SP-30 Flow Sensor for use with SP-1 Spirometer Disposable Mouthpieces for Schiller SP-20 flow sensor & SP-30 Flow Sensor Spirometers. For Single Use only. 100 disposable mouthpieces (#2.100025). *disposable filters (#2.100123) are sold separately. Click here for more Schiller Accessories and Supplies
