G4 pleated panel filters used in a pre filter aplication, these are made from moisture resistant cardboard, G4 filerteration and perforated mesh to stop the air blowing it down the ducting.
Used for pre-filteration for a cheaper and easy replacement.
- Moisture resistant cardboard frame
- strong robust construction
- extended surface area High dust holding capacity
ALL SIZES ARE KNOCKED DOWN SO THEY FIT INSIDE THE DUCT eg: 500x500x50mm = 496x496x47mm