Customize your system with a 25 gallon closed tank.  
Includes 6 panels, liner, 12 pins, and 3 bag fittings.  Use this as a first flush system or add extra tanks.  The closed system prevents mosquitoes, overflow problems, and any safety issues.  Stack vertically up to 2 units, or connect an unlimited amount side-by side.  *Does not include spigot or inlet.
Dim. 18x18x18