Welch Allyn/Hillrom-DS44-12CB DuraShock DS44 Pocket Aneroid Sphygmomanometer, Inflation Bulb and Valve, Size-12 Large Adult, Reusable (Two Piece), 2-Tube Cuff (Each),Welch Allyn Hillrom DS44 12CB DuraShock DS44 Pocket Aneroid Sphygmomanometer,Inflation Bulb and Valve, Size 12 Large Adult, Reusable (Two Piece), 2 Tube Cuff The Welch Allyn DuraShock DS44 Pocket Aneroid Sphygmomanometer is gear free and shock resistant. It remains in calibration longer than traditional aneroids, providing more accurate readings over time and a lower lifetime cost. The DS44 provides unsurpassed reliability and unmatched patient