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The PARKER E11R20A is a string-wound cartridge filter designed for plumbing and fluid filtration applications requiring consistent particulate removal. Built with a rayon winding over a polypropylene plastic core, this filter captures sediment and suspended particles at a 50 micron rating. It measures 2.5 inches in outside diameter and 20 inches in length, fitting standard filter housings common in commercial and light industrial plumbing systems. At 0.8 pounds, it is straightforward to handle and replace. The rayon construction carries an FDA material grade designation, making it suitable for use in potable water and food-adjacent process lines where material compliance matters.
This filter is suited for residential and commercial plumbing installations where sediment control is required upstream of fixtures, equipment, or process lines. Typical applications include whole-house filtration systems, point-of-entry water treatment setups, and light industrial process water lines. The 50 micron rating targets coarse-to-medium sediment loads such as sand, silt, and rust particles. It is installed by licensed plumbers or water treatment technicians working on filter housing systems that accept 2.5-inch OD, 20-inch cartridges.
Designed as an OEM-style replacement cartridge for standard plumbing filter housings accepting 2.5-inch outside diameter, 20-inch length string-wound cartridges.
Installation 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 code requirements, including applicable IPC provisions, when integrating into potable water lines. Do not exceed the rated maximum working temperature of 120 degrees F in the installed application.
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