Home Products Replacement Sensors MSA-Catalyst Research 94-700-90 Description Neb Block with 0-15 LPM Oxygen Flowmeter, 7-8 LPM Fixed Flow Barb x Puritan Bennett Inlet Our Price: $109.70 - + Prices Subject to Change without Notice Special pricing and quantity discounts available. Call 888-495-1300 for savings! Add to cart Email a friend Tweet