The Anjon Big Frog TuffTank is a crush resistant cylinder that withstands extreme compression and inward lateral pressure. Use in pondless waterfall applications to protect your pump. Its collapse-proof lid design keeps rocks out of the pump tank - easily removable for accessing the pump. 

An 18" extension is available for the TuffTank 22 model. The Tuff Tank and Tuff Tank Extension bolt together for sturdy assembly