Set of 2 Airtight 23 Cup Containers by Snapware

Features: Microwave, dishwasher and freezer safe, Durable airtight gasket seal, Modular stackable design
Easy open-and-close four-latch polypropylene lid, BPA free polypropylene container and lid

23 cups is about 5.44 liters.  My rule of thumb on smaller containers is 1.25 lbs of grain per liter.  That means this should hold about 6.8 lbs of base or specialty grain.  It would also hold a good amount of DME.

I own a similar (although smaller) 17 Cup Container from Snapware.  I generally use that for DME and it works great.  Check out my Hands on Review of that container.

Airtight Medium Rectangle 23 Cup 8X6X9 – Set of 2

Also: Storage Options – Base Grain, Specialty Grain and DME