Vacuum/Pressure Bulb 85 mL without Tubing, Black

• Ideal for gas sampling or for pumping gas through apparatus • Constructed of natural rubber • 85 mL volume, 5.4 in L x 2.1 in outer dia. x 0.3 in hole dia. (137 mm L x 53 mm OD x 7.4 mm hole dia.) • Two rubber valves with PVC connections (tubing not supplied)