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The PARKER WC19R20 is a string-wound cartridge filter designed for plumbing and water filtration applications. Wound from acetate cotton over a tinned steel core, it captures particulate down to 10 microns while maintaining flow in standard filter housings. The cartridge measures 2.5 inches in outside diameter and 20 inches in length, fitting a wide range of industry-standard sump housings. It handles process temperatures up to 250 degrees F, making it suitable for both cold and hot water service lines. Plumbers and water treatment technicians install this type of filter in residential and light commercial filtration systems to protect downstream equipment and improve water quality.
The WC19R20 is suited for residential and light commercial plumbing systems where sediment and particulate control are required. Typical applications include whole-house pre-filtration, well water systems, irrigation supply lines, and commercial food-service pre-treatment. The string-wound construction provides graduated density filtration, which helps extend service life by trapping larger particles in the outer layers and finer particles toward the core.
Designed as an OEM-style replacement or standard service cartridge for residential and light commercial plumbing filter housings accepting 2.5 inch OD by 20 inch string-wound cartridges.
Shut off the water supply and relieve system pressure before opening any filter housing. This cartridge is installed by licensed plumbers or trained water treatment technicians following applicable IPC guidelines. Use a housing wrench rated for the housing size to avoid cracking plastic sumps. Replace the cartridge on a schedule based on water quality and pressure drop across the housing rather than time alone.
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