The popular 400 gallon poly piston bin is now widely used in many parts of the world for lubricating greases, automotive undercoatings, silicones adhesives, and other viscous products. The light weight translucent piston bin provides a simple and justifiable solution for handling viscous products. One bin replaces up to eight drums, and the air-tight seal assists in the discharge of viscous materials while maintaining product integrity. Low pressure stainless and carbon steel piston bins and bulk storage piston tanks are also available.