- The new modular, locking design allows you to create a compliant 4-drum unit.
The new Black Diamond Drum Decks are the answer for plant safety and compliance. Combine the one drum and the two drum decks for a perfect corner unit. They locate easily anywhere in your plant and give you the reliability of an engineered design that handles your heaviest drums. These units are completely nestable and with their space saving technology can be shipped in quantity for less. FOB Shipping Point.