Great Northern Products, Inc. is an Industrial/Commercial E-commerce Distributor specializing in engineered products for the processing refinery industries. Our focus is infrastructure integrity, safety and inspection for petrochemical, oil gas, power generation including steam, co-generation and nuclear entities. Great Northern Product's sites include, 3D Oil Viewports, Infrared Inspection Ports and Non-Destructive Testing (NDT) Plugs. Great Northern Products also offers privately owned SpekSites which are E-commerce websites featuring specialty industrial niche products, supporting the Industrial Refining and Processing industries.