ALWAYS FULL Carbon Block Water Filter Replacement Cartridges, 2-Pack for Wall Unit, NSF Tested

Always Full® Wall Unit Carbon Block Replacement Cartridges are a two-cartridge replacement set designed to filter water for a self-cleaning pet water bowl.

• Coconut carbon filtration — removes chlorine, VOCs, and chemicals from water.
• NSF 42 certified and tested to NSF 53/401 standards — provides a clear filtration benchmark.
• Filters up to 100 gallons or four months — supports ongoing use between cartridge changes.
• Proprietary cartridges for the Always Full Wall Unit — keep the compatible pet water bowl filtering.
• Wall Unit connection uses 1/4-inch OD (6.35 mm) water-line tubing — supports connection to household water sources.

These replacement cartridges are made for pet owners who want water in a self-cleaning bowl to stay filtered, clear, and free of unwanted odor. They work as part of the Always Full Wall Unit system, so the bowl can receive water from a connected household source rather than relying only on manual refills. The filtration and compatibility details make it easier to plan replacements and confirm that the cartridges suit your setup.

What does the carbon block filter remove?

The coconut carbon block is designed to remove chlorine, VOCs, and chemicals from water. This filtration helps keep bowl water clean, odor-free, and good-tasting for pets. The cartridge is NSF 42 certified and rigorously tested to NSF 53/401 standards, offering specific standards associated with its filtration performance.

• Uses coconut carbon technology.
• Designed for filtered water in a pet bowl.

How long does each replacement cartridge last?

Each cartridge filters up to 100 gallons or four months. Replaceable filters help maintain filtration as the Always Full Wall Unit continues supplying water to the bowl. The stated capacity and time period give pet owners two practical reference points for keeping replacement cartridges on hand.

• Two replacement cartridges are included in the set.
• Cartridges are designed for easy replacement.

Will these cartridges fit my pet water setup?

These proprietary cartridges are made for the Always Full Wall Unit, which is designed to work with the Always Full self-cleaning cat or dog water bowl. The Wall Unit connects to a household water source using 1/4-inch OD (6.35 mm) water-line tubing. Possible connection points include a refrigerator, sink, or laundry machine, as well as a location under a crawl space.

• The cartridges are intended for the Always Full Wall Unit.
• The water-line connection belongs to the Wall Unit system.

These cartridges suit cat and dog owners using the Always Full Wall Unit who want coconut-carbon filtration as part of their pet’s water-bowl setup. They are replacement filters for that proprietary system, with a stated filtration capacity of up to 100 gallons or four months per cartridge.

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