In 1979 Kirk DuBois, his grandson, inherited the business and his goal remained the same as that of his grandfather. Now, sixty years later, Grotenrath has achieved that goal, by concentrating on the quality of products and services we provide to all our customers in North America. Grotenrath sells and distributes high quality "O" Rings for hydraulic and pneumatic applications. From our extensive inventory we can fill orders for seals in both inches and metric dimensions. In addition to our standard sizes, we can provide non-standard "O" Rings from stock and specially manufactured seals for unique customer requirements. Grotenrath also stocks several other lines of popular sealing products including molded, leather, plastic, and urethane seals.