This Pyrex brand borosilicate glass tubing is recommended for laboratory use where sudden temperature changes are involved and mechanical strength and high chemical stability are needed.
Sold only in original cases for the volume consumer. Lengths are 1500mm with cut ends, except for sizes 10 through 28 mm O.D. which have cut and glazed ends.

Case quantities for this tubing is measured by weight in lbs, not # tubes/case.  For approximate number of glass tubes in the case, refer to column "Approx. Pcs./Case"