This package includes:
Triplex Sans Light $39
Triplex Sans Bold $39
Triplex Sans Extra Bold $39 
 

Other options:
OpenType Volume $359

Some fonts in this family include the following features: • Proportional Old Style Numbers • Proportional Lining Numbers • Tabular Old Style Numbers • Tabular Lining Numbers
Accessing these features requires an OpenType savvy application, such as Adobe InDesign.