Diversitech Fred Jr. 21″ Polyester Filter Cartridge – 4-pack

An industrial-grade replacement filter set for the FRED Jr. fume extractor, each 21″ cartridge features MERV 11-rated spunbond polyester media to effectively capture welding fumes, grinding dust, and particulates. The washable design ensures extended service life and minimizes maintenance costs for industrial applications.

The Diversitech Fred Jr. 21″ Polyester Filter Cartridge – 4-Pack is an industrial-grade replacement filter set engineered for the FRED Jr. portable fume extractor. Each cartridge utilizes MERV 11-rated spunbond polyester media, offering efficient filtration of airborne contaminants such as welding fumes, grinding dust, and other particulates. The washable design allows for extended service life and cost-effective maintenance.

SPECIFICATIONS:
Filter Media: Spunbond polyester
MERV Rating: 11
Media Surface Area: 105 sq. ft. per cartridge
Dimensions: 21″ length
End Cap Configuration: Open/Closed
Cleaning Method: Air and water washable
Maximum Operating Temperature: 180℉ (82℃)
Fire Retardant: Yes