Clean bore tubing 25cm in length with an inner diameter of 35mm, connects the MLA304
Disposable Filters to the MLT300L
Respiratory Flow Head 300L, MLT1000L
Respiratory Flow Head 1000L and MLT3813H-V
Heated Pneumotach.
MLA1011A Clean-bore Tubing & Tubing Adapter is included with the PTK20
Exercise Breathing Kit.