Parker WC11R20S Cartridge Filter 50 Micron 20 Inches

Product Description

The PARKER WC11R20S is a string-wound cartridge filter designed for plumbing and water filtration applications requiring reliable sediment removal at a 50 micron rating. The filter measures 2.5 inches in outside diameter and 20 inches in length, constructed with an acetate cotton wound media over a stainless steel core. This combination provides structural integrity under pressure while maintaining consistent filtration across the media surface. Licensed plumbers and water treatment technicians typically specify this type of cartridge for whole-house, commercial point-of-entry, and process water systems where sediment control is the primary objective.

The WC11R20S is suited for residential and light commercial plumbing installations where a standard 20-inch big-blue or equivalent filter housing is in use. Its 50 micron rating targets coarse to medium sediment particles including sand, silt, rust scale, and suspended debris. The stainless steel core resists collapse under differential pressure, and the acetate cotton media tolerates system water temperatures up to 250 degrees F, making it compatible with hot-water service lines and higher-temperature process applications.

Key Features

• 50 micron filtration rating for coarse to medium sediment removal
• Acetate cotton string-wound media for depth filtration and high dirt-holding capacity
• Stainless steel core for structural resistance to pressure differential and collapse
• Rated to 250 degrees F maximum working temperature for hot-water and process line service
• Standard 20-inch length fits common big-blue and equivalent filter housings
• 2.5 inch outside diameter for drop-in replacement in matched housings

Compatibility

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

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the upstream water supply and relieve system pressure completely before opening the filter housing. Inspect the housing o-ring for wear or damage and replace it if needed before seating the new cartridge. Do not exceed the housing manufacturer's rated working pressure or temperature limits.