Welch Allyn Connex� Probp 3400 Series & Accessories Each 3400-31 by Welch Allyn GROUP: Diagnostic Instruments:Patient Monitoring/Vital Signs:Blood Pressure Item Description: ProBP 3400 Blood Pressure Hose, Double-Tube, 10 ft Packaging Desc: Hose Bp Probp Double-Tube10Ft Country of Origin: Harmonized Tariff Code: Product Description: