3M Combination Dual Airline Back-Mounted Breathing TubeSA-2600/37001(AAD) 1General Information Brand 3M Fitting Type Industrial Interchange Mounting Type Back Mounted Pressure Type High Product Series SA 2000 Product Type Breathing Tubes Supplied Air Respirator Style Low Pressure Portable Ambient Air Pump Valve Type Air Regulating Valve Country Of Origin United States Sold As Case Lead Time 2 days California Residents Proposition 65 Warning Dimensions and Specifications CFM Capacity Per Minute 50 CFM Cfm Capacity Per Minute