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 inventory to their local warehouse.

AIS Couplings

AIS compliant couplings are available, couplings are made to order, shipped from Fargo, ND and ordered with AIS included in the part number, IE IS156-88AIS.  Shear rings also available in AIS, IE IS156-88AISSR.  AIS shear rings are ASR thickness.

2017 Price Increase

Hurricane Harvey is having a significant impact on the PVC supply chain.  We have begun to see price increases in resin. As a result of these increases, we find it necessary to increase our Indiana Seal PVC flexible couplings list prices by 15%.  The effective date will be October 1, 2017.

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 Associates brings an experienced sales team and will inventory at their local warehouses.

AIS Compliant

Indiana Seal will meet AIS  or "American Iron and Steel"  requirments.

Please specify when you need AIS compliant couplings to ensure all items are produced in a manner compliant.

Fast Branch Tee

We are proud to introduce our latest product the Fast Branch Tee.  The solution for stocking one item to branch off Plastic, Clay, and Concrete Pipes.  For additional information please contact Indiana Seal or your local representative.

New February 2, 2015 List Prices Available for Download

The New February 2, 2015 List Prices are available to download in Excel or Adobe pdf.

You can find them in our downloads section.

February 2015 Price Increase

Due to market conditions GPK Products, Inc. will implement a 15% list price (current list price x 1.15) on the PVC Fittings and Drainage Products catalogs on February 2nd, 2015.

We are also announcing a 2% list price increase on Indiana Seal (current list price x 1.02) On Monday February...

New Product Introduction

Indiana Seal is now manufacturing 10” and 12” Seal Caps. These Seal Caps will fit pipes with Sewer or IPS O.D.’s. Contact your area manufacturer’s representative or call the factory direct, and one of our customer service representatives will help you out with pricing and availability.

Introduction of New Products

GPK Products / Indiana Seal is please to announce its newest product for the sewer and drain industry. If you are concerned about shear failure and pipe offset, then our new product will help to reduce these issues. “Shear Guard” by Onset Pipe Products, Inc. will improve pipe alignment and...