Comparison : Item # FM601, 1/8 Inch (in) Female National Pipe Thread (FNPT) Standard Inlet Medical Air Flowmeter
Item # FM602, 1/4 Inch (in) Male National Pipe Thread (MNPT) Inlet Medical Air Flowmeter with Fitting
Item # FM603, Diameter Index Safety System (DISS) Hex Nut and Nipple Inlet Medical Air Flowmeter with Fitting
Item # FM604, Diameter Index Safety System (DISS) Hand Tight Nut and Nipple Inlet Medical Air Flowmeter with Fitting
Item # FM607, Medical Air Flowmeter with Ohmeda® Adapter