TGR primarily features Schott Duran brand borosilicate tubular gage glass. Duran by Schott is the highest quality liquid level gage glass tubing in the world.  The same exacting manufacturing controls are applied to the production of Duran Tubular Gage Glass as are used on all Schott products. Each piece of genuine Duran tubular gage glass of standard length and case quantities has, to certifly quality and authenticity,  the following identification is imprinted on each glass:  Type of Glass, Co-efficient of expansion, Style of glass.  TGR stocks container loads of 1/2", 5/8" 3/4" and 1" OD of various Duran brands of borosilicate gage (gauge) glass. 

 

More information about Schott Glass can be found clicking here.

 

TGR also offers other brands and types of level gage tubing for commercial and atmospheric non-steam (coffee-pot) applications.   TGR is one of the largest suppliers of glass and acrylic tubing for OEM applications.