Profile: Sure Seal, Inc. specializes in components for pneumatic tank trailers, rail cars, chemical and pharmaceutical plants. Our products include aeration systems, filtration, hopper tees, pressure manholes, pressure relief valves, quick release couplers and butterfly & lined ball valves. We offer hopper tee products, pipe couplers and an aeration system for powder bulk storage & pneumatic tank trailer industry. Our aluminum swing check valve is designed to withstand high temperature dry bulk environments. We are accredited with ISO 9001 certification.