GPK Products

GPK will rise to your challenge of engineering and fabricating PVC fittings to your specific needs when the configuration demands it.

GPK Products Inc. has, since 1972, built our reputation of superior customer service through engineering and product excellence. We have developed over 4100 molded and fabricated fittings, cataloged in sizes through 54" for nearly every field application.

The Company

America's number one producer of PVC fittings.


GPK offers a variety of Online resources to help you get the information you're looking for quickly. You can download products list, pricing list, submital sheets, pipe OD's and or quickly search for any GPK products by number, name, or use. 

Current News

New Warehouse
GPK Products, Inc. / Indiana Seal is pleased to announce the addition of GOC South in the state of North Carolina to our warehouse network.  GOC South brings an experienced sales team and extensive...
April 2018 GPK Rigid Fitting Price Increase
Due to various cost increases, GPK Products, Inc. will implement a 7% price increase on all rigid PVC sewer fittings effective April 9, 2018. This price increase does not currently affect list prices...