Center Posts:
If you wish to use less than a full set of filter modules, a shorter center post can be used.

Size Options:

• 1-High center post for loading only 1 module in 2-high through 4-high housings.
• 2-High center post for loading 2 modules in 3-high and 4-high housings.
• 3-High center post for loading 3 modules in 4-high housings.