Silicone rubber tubing, 50 ft. roll.  This tubing serves dual purpose roles:

• Used as pump tubing on the 3700 Series, GLS and Glacier Samplers.
• Used as discharge tubing on the 4700, 5800, 6700 Series, Avalanche, BLZZRD, GLS and Glacier Samplers.

Dimensions:  0.375 Inch I.D. x 0.625 Inch O.D. x 0.125 Inch Wall

Note:  If your tubing indicates part number 029132004, it is a raw material number.  Order this tubing or the 10 ft. roll in place of 029132004.