Lower Peninsula
Powder-Bulk Products, Inc.
5124 Birch Dr.
Lexington, MI 48450
Phone: (810) 359-0130
Fax: (810) 359-0132
Ed Dunkelberger

Upper Peninsula
D. E. Riley Company
2145 S. 170th Street
New Berlin, WI 53151
Phone: 262-786-1230
Fax: 262-786-6863
info@valveshop.com