Parker 15R20S String-wound Cartridge Filter 20 Micron

Product Description

The PARKER 15R20S is a string-wound cartridge filter designed for plumbing and water treatment applications requiring reliable sediment removal at a 20-micron rating. Constructed from FDA-grade cotton wound over a stainless steel core, this filter removes suspended particulates including dirt, sand, rust, and scale from liquid streams. It measures 20 inches in length with a 2.5-inch outside diameter and is rated for fluid temperatures up to 250 degrees F. The stainless steel core provides structural integrity under pressure and resists corrosion. Licensed plumbers and water treatment technicians are the primary installers for this type of filter in residential and light commercial systems.

This filter fits standard 20-inch Big Blue and comparable filter housings used in whole-house water filtration, process water, and light industrial plumbing systems. The 20-micron rating makes it well suited as a pre-filter stage upstream of finer filtration or water softening equipment. The cotton string-wound construction provides depth filtration, trapping particles throughout the media rather than only at the surface, which extends service intervals in moderate-sediment applications.

Key Features

• 20-micron rating removes sediment, rust, sand, and fine particulates from water supply lines
• FDA-grade cotton media suitable for potable water and food-contact applications
• Stainless steel core resists corrosion and maintains filter geometry under operating pressure
• Rated to 250 degrees F maximum working temperature, compatible with hot-water service lines
• String-wound depth filtration design extends service life compared to surface-only media
• Standard 20-inch length fits widely available Big Blue and equivalent filter housings

Compatibility

Designed as an OEM-style replacement or service filter for standard 20-inch plumbing filter housings accepting 2.5-inch outside diameter cartridges in residential and light commercial water treatment installations.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable IPC requirements. Shut off the water supply and relieve system pressure before opening the filter housing. Inspect the housing o-ring and replace it if worn or cracked before reinstalling the housing cap. Do not exceed the rated maximum working temperature of 250 degrees F during operation.