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 Florida Representation
GPK Products, Inc. / Indiana Seal is pleased to announce Specified Sales Associates is our rep in the state of Florida (excluding Panhandle West of the Apalachicola River).  Specified Sales...
New 12" Molded items & other sizes
We are pleased to announce the addition of 12” molded items to our product line.  In addition we are adding a couple 4” - 10” molded items.  We have begun putting these items into production and will...