20" CTO Filter (Chlorine Teste and Odor Filter)

Key Specifications & Features

Dimensions: Usually comes in two standard widths:

Slim (Standard): 20" length x 2.5" diameter.  

**Big Blue (BB): 20" length x 4.5" diameter (used for higher flow rates).  

Micron Rating: Typically 5 microns, though 1-micron or 10-micron versions exist.

Material: Made of Extruded Activated Carbon Block. High-quality versions often use Coconut Shell Carbon, which is known for superior adsorption and leaving a "sweeter" taste.  

Capacity: Standard 20" cartridges often handle between 15,000 to 30,000 gallons depending on water quality and flow rate.