Indiana Seal FacilityIndiana Seal, a GPK Products company, is proud to be manufactured in the United States of America;  Indiana Seal began manufacturing flexible PVC couplings in 1981.  In 2007 Indiana Seal was purchased by GPK Products, an industry leader in rigid PVC fittings.  Operations were then moved to Fargo, ND where Indiana Seal continues to offer a full line of flexible couplings.

 Our couplings are able to connect a wide variety of pipe, such as clay, cast iron, ductile iron, concrete, and PVC.  Coupling sizes are offered from 1 1/4" through 42" with the capabilities to make custom couplings to virtually any dimension.  All of our couplings are constructed of tough, yet pliable PVC, making them able to withstand hazards like sewer gases, chemicals, fungus growth, various soil conditions, roots and other in-ground dangers that can lead to leaks and breakdowns in the system.  The strictest quality standards are maintained and expected throughout the manufacturing process from our in-house Quality Control department.

With our sights on the future, Indiana Seal will continue to be on the cutting edge of new products while maintaining our superior quality and customer service.

Indiana Seal has the perfect fit for any job, and you can find that perfect fit here by browsing through our full product catalog.