The Carbon Block Series is the traditional type Underbench Systems which has consists of a housing which is in two parts screwed together - a lid which connects to the water line, and a sump which houses the Carbon Block cartridge.
Included in the Set is:
Once the Housing is installed, all you need to do is remove the sump from the housing , take out the old cartridge, replace it with a brand new one and screw the sump back onto the lid.
The benefit of this type of system, is that you can put any 10" x 2.5" Cartride in the housing if your requirements change. For a complete list of cartridge which fit this housing, click on the following link and select any 10" Standard Cartridge