Watco GAC20-20 Granular Activated Carbon Filter Cartridge

Product Description

The WATCO GAC20-20 is a granular activated carbon (GAC) filter cartridge designed for standard whole-house or point-of-entry filtration housings. At 20 inches in length and 2.5 inches in diameter, it fits the most common big-blue and standard slim-line cartridge filter housings used in residential and light commercial water treatment systems. The cartridge operates at a 10 micron filtration rating, targeting chlorine, chloramines, volatile organic compounds (VOCs), and general taste-and-odor contaminants as water passes through the activated carbon bed. Installation is straightforward for licensed plumbers and water treatment technicians.

This cartridge is suited for residential water filtration applications where chlorine reduction and taste-and-odor improvement are the primary treatment goals. It fits standard 20 inch by 2.5 inch filter housings commonly installed at the point of entry or under-counter locations. Typical applications include whole-house pre-filtration ahead of softeners or reverse osmosis systems, and inline filtration for drinking water lines. No compatible model numbers were specified in the product data.

Key Features

• 10 micron filtration rating targets chlorine, chloramines, and VOCs
• Granular activated carbon media allows high flow rates with low pressure drop compared to block carbon
• 20 inch length fits standard slim-line and big-blue 20 inch filter housings
• 2.5 inch diameter profile for universal compatibility with common cartridge housings
• Suitable for both point-of-entry and point-of-use installation configurations

Compatibility

Designed as an OEM-style replacement cartridge for standard 20 inch by 2.5 inch filter housings used in residential and light commercial water treatment applications.

Installation Notes

Installation should be performed by a licensed plumber or qualified water treatment technician in accordance with local plumbing codes and IPC guidelines. Shut off the water supply and relieve system pressure before opening the filter housing to replace the cartridge. Flush the cartridge for several minutes after installation to clear any initial carbon fines before returning the system to service. Do not exceed the housing manufacturer's rated pressure and temperature limits.

Technical Specifications

• Filtration Rating: 10 micron
• Length: 20 inches
• Diameter: 2.5 inches
• Media Type: Granular Activated Carbon (GAC)

Standard Information

• Brand: WATCO
• Manufacturer Part Number: GAC20-20