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The AO SMITH 100291510 is a replacement filtration cartridge designed to service the Product Preservers PP-AS20 filtration system. This cartridge restores the filtering capacity of the PP-AS20 unit, maintaining water quality and protecting downstream equipment from sediment, scale, and particulate contamination. It is installed by licensed plumbers or water treatment technicians as part of a routine maintenance cycle. Swapping the cartridge at the manufacturer-recommended interval keeps the host filter housing operating at rated performance and prevents bypass conditions that allow untreated water to pass through the system.
This cartridge is suited for residential and light commercial water treatment applications where the PP-AS20 filter housing is installed on potable water supply lines. It is the correct OEM-specified replacement for the PP-AS20 system, making it a direct drop-in service part. Plumbing contractors and service technicians carrying this cartridge as a stock item can complete filter maintenance calls in a single visit without sourcing aftermarket alternatives.
Designed as a direct replacement cartridge for the AO SMITH Product Preservers PP-AS20 filter housing.
Cartridge replacement is typically performed by a licensed plumber or water treatment technician. Before servicing, shut off the water supply to the filter housing and relieve system pressure by opening a downstream fixture. Follow the housing manufacturer's instructions for cartridge removal and insertion, and inspect the housing o-ring for wear before reassembly. Restore water supply and check for leaks at the housing connections before returning the system to service.
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