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.

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.

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.

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...