Ductile Iron Pipe Research Association

From its inception more than 100 years ago, the Ductile Iron Pipe Research Association (DIPRA) has provided accurate, reliable, and essential engineering information about cast iron—and now Ductile Iron—pipe to a wide variety of utilities and consulting engineers.

Contact

P.O. Box 19206
Golden, CO 80402
United States
Phone:
205.402.8700
Fax:
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