All prices subject to change without notice.


Payment terms are NET 10 days following month of sale. A service charge of 2% per month will be charged on all past due invoices.


All orders are shipped F.O.B. shipping point, Norristown, Pennsylvania.

Illustrations and Specifications:

Designs, dimensions, specifications, etc. as shown in this catalog are subject to change without notice. Duff Company will not be liable for any inaccuracies therein or variances.


Placement of an order with our company is a binding agreement to our terms and conditions. We reserve the right to correct clerical errors in quotations, orders, invoices and other documents. The foregoing constitutes all of or our terms and conditions of sale and we make no other agreement, presentation, or warranty, express or implied.