BorosilicateGlass-SpecialtyScientificGlass HeavyWallRectangularTubing WaleoffersacompletelineofhighqualityHeavyWallRectangleTubinginBorosilicateGlassthatcanbedrawnintovariousshapesandsizes.Walltolerancesaretypically20%whileinnerdimensiontolerancesareheldtomuchtighterspecifications. Soldin1'increments.Canbesuppliedinlengthsupto4'longifrequested. ItemNo. Description Amount Qty. R-2675H 26mmx75mmIDx2.80mmWall R-3050H 30mmx50mmIDx2.50mmWall R-3575H 35mmx75mmIDx3.00mmWall R-4080H 40mmx80mmIDx3.00mmWall R-5075H 50mmx75mmIDx3.00mmWall