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The ATLAS zc1803762 is a carbon block filtration cartridge designed for residential and light commercial water treatment systems. It operates at a 1 micron rating with an integrated gallon counter function, and a 5 micron cartridge option is also associated with this part number. Carbon block construction provides effective mechanical filtration and reduction of chlorine, sediment, and organic contaminants. This cartridge is sized at approximately 5 inches in diameter and 20 inches in length, making it compatible with standard big-blue or slim-line filter housings. Water treatment technicians and plumbers install this type of cartridge during routine filter maintenance or system commissioning.
This carbon block cartridge is suited for point-of-entry and point-of-use water filtration applications. It fits within standard filter housings and is typically installed on incoming supply lines in residential kitchens, whole-home filtration systems, or light commercial settings where sediment and chlorine reduction is required. The gallon counter feature on the 1 micron variant allows service intervals to be tracked by volume rather than elapsed time, which is useful for high-use installations or service agreements requiring documented maintenance intervals.
Designed as a replacement filtration cartridge for standard 5 inch by 20 inch water filter housings compatible with Atlas Filtri systems. Consult your housing documentation to confirm cartridge fitment before installation.
Installation of this cartridge should be performed by a licensed plumber or qualified water treatment technician. Shut off the water supply and relieve system pressure before opening the filter housing. Follow local plumbing codes, including applicable IPC guidelines, when servicing point-of-entry filtration systems. Do not exceed the rated operating pressure of the filter housing when returning the system to service.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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