Vial (0.0001" Sensitivity) for Inspection Block Levels
for Inspection Block Levels No. 31-061-5, 31-063-1
& Inspection Square Block Levels 31-081-3
Replacement Vial (0.0001" Sensitivity)
for Inspection Block Levels No. 31-061-5, 31-063-1
& Inspection Square Block Levels 31-081-3