Parker S15R20A String-wound Filter 20 Micron 2.5in Od 20in

Product Description

The PARKER S15R20A is a string-wound cartridge filter designed for plumbing and fluid filtration applications requiring reliable particulate removal at a 20-micron rating. Constructed from polyester string wound over a polypropylene plastic core, this cartridge traps sediment, rust, scale, and suspended solids from water lines and process fluid systems. It measures 2.5 inches in outside diameter and 20 inches in length, fitting standard filter housings designed for that cartridge size. The polyester media carries an FDA material grade, making it suitable for potable water and food-adjacent applications. Plumbers and water treatment technicians are the primary installers. The cartridge weighs 0.8 pounds and is rated for a maximum working temperature of 120 degrees F.

This cartridge filter is used in residential and light commercial water treatment systems, whole-house sediment filtration setups, and inline process fluid filtration wherever a 20-micron pre-filter stage is required. Its string-wound construction provides depth filtration, capturing particles throughout the media thickness rather than only at the surface, which extends service intervals in moderate-sediment applications. Typical installations include point-of-entry water systems, irrigation pre-filters, and equipment protection filters upstream of softeners, RO membranes, or boiler feed lines.

Key Features

• 20-micron filtration rating removes sediment, rust, and suspended solids
• String-wound polyester construction provides depth filtration for extended service life
• Polypropylene plastic core resists moisture and common water treatment chemicals
• FDA-grade polyester material suitable for potable water and food-adjacent systems
• Rated to 120 degrees F maximum working temperature
• Standard 2.5 inches OD x 20 inches length fits widely available filter housings

Compatibility

Designed as an OEM-style replacement for standard 2.5-inch OD, 20-inch long cartridge filter housings used in residential and commercial plumbing filtration systems.

Installation Notes

Installation is typically performed by a licensed plumber or water treatment technician. Shut off the water supply and relieve system pressure completely before opening the filter housing. Follow the filter housing manufacturer's torque guidance for the housing sump to avoid cracking the housing body. Inspect the housing O-ring for wear or damage and replace it if necessary before reassembling.