Bumper guard for Volumetric Flask
Capacity: 5 to 50mL, N/s: 10/19
Capacity: 50 to 100mL, N/s: 12/21
Capacity: 50 to 250mL, N/s: 14/23
Capacity: 500mL, N/s: 19/26
Capacity: 1000mL, N/s: 24/29
 

Bumper guard for Volumetric Flask