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

A high-efficiency replacement filter set for the FRED Jr. fume extractor, each 21″ cartridge features MERV 15-rated nanofiber media to capture submicron particles from welding, grinding, and similar processes. Delivers superior filtration performance and supports clean, compliant industrial air quality.

The Diversitech Fred Jr. 21″ Nanofiber Filter Cartridge ? 4-Pack is a high-efficiency replacement filter set engineered for the FRED Jr. portable fume extractor. Each cartridge incorporates MERV 15-rated nanofiber media, providing exceptional filtration efficiency for capturing submicron particles generated during welding, grinding, and other industrial processes.

SPECIFICATIONS:
Filter Media: Nanofiber
MERV Rating: 15
Media Surface Area: 190 sq. ft. per cartridge
Dimensions: 21″ length
End Cap Configuration: Open/Closed
Cleaning Method: Compressed air
Maximum Operating Temperature: 180?F (82?C)
Fire Retardant: Yes