All 2-1/2" (63.5mm) long
# 1018-22 Nominal size: 22 mm ID, color white
# 1018-27 Nominal size: 28 mm ID, 30.2 mm OD, color blue
Fits MIR Spirobank and large end of our # 3420 filter
# 1018-28 Nominal size: 28 mm ID, 31.4 mm OD, color blue
# 1018-30 Nominal size: 30 mm ID, color clear
# 1018-34 Nominal size: 34 mm ID, color clear, 2" long
Fits typical 1-3/8" OD ports
lot of 10, for box of 100 buy 1018-MG
# 1018-MG Nominal size: 34 mm ID, 2 inches long, color clear
Fits Med-Graphics "Prevent" and "Micro" spirometers
Optional reusable, refillable dispenser box available free with purchase of 1 bulkbox, just ask for ZMPBOX.
Last Updated: 31 Mar 2022