What additional features does the Enclosed IBC Bund provide for IBC storage?

What additional features does the Enclosed IBC Bund provide for IBC storage?

It includes the following; 

• A built-in vent to expel gases.  
• A 250ltr day tank for continuous dosing if incorporated into an in-line process. 
• Rainwater resistant doors holds chemical spray inside and prevents rainwater ingress 
• Lockable cabinet 
• Viewing windows incorporated into the doors 

• 110% bund capacity complies with AS3780 
• Venting x 2 sides 
• Vent and low-level alarm available 
• Chemical resistant – high grade polyethylene construction 

• Optional dosing pumps and systems easily incorporated into the functional front cabinet 
• Optional level alarms for day tank