Parker S11R20A Cartridge Filter 50 Micron Polyester 20in

Product Description

The PARKER S11R20A is a string-wound polyester cartridge filter designed for plumbing and liquid filtration applications. It measures 2.5 inches in outside diameter and 20 inches in length, with a 50-micron rating that captures sediment, rust, and particulate matter from water supply lines. The core is constructed from polypropylene plastic, and the filter media meets FDA material grade standards. Rated for a maximum working temperature of 120 degrees F, this cartridge suits a range of residential and light commercial inline filtration systems. Licensed plumbers and water treatment technicians are the primary installers.

This cartridge filter is used in standard 20-inch filter housings for point-of-entry and point-of-use plumbing systems. Typical applications include sediment prefiltration for whole-house water treatment systems, irrigation supply lines, and commercial process water lines where coarse particulate removal is required. The 50-micron rating makes it appropriate as a first-stage filter ahead of finer membrane or carbon filtration stages. Its polyester string-wound construction provides consistent depth filtration across the full length of the cartridge.

Key Features

• 50-micron rating for coarse sediment and particulate removal
• String-wound polyester media for depth filtration performance
• Polypropylene plastic core for chemical resistance and structural integrity
• FDA-grade materials suitable for potable water applications
• Rated to 120 degrees F maximum working temperature
• Standard 20-inch length fits widely available filter housings

Compatibility

Designed as an OEM-style replacement cartridge for standard 20-inch plumbing filter housings accepting 2.5-inch outside diameter string-wound cartridges.

Installation Notes

Installation is performed by a licensed plumber or qualified water treatment technician. Shut off the water supply and relieve line pressure before opening the filter housing. Use a housing wrench to remove and reseat the sump without cross-threading. After reinstalling the cartridge and housing, restore pressure gradually and inspect for leaks before returning the system to service.