panel filters suppliers Item No.: KLFC-012 Brand Name: KINGLEI Usage: pre-filtration in central air conditioning(air box)and cabinet ventilation Feature: low resistance large dust holding capacity environmental and easy recovery Frame: paper frame(white or grey) size: 20/25.4/46/60/90 mm filter media : synthetic fiber Proctection net: aluminium mesh or galvanized steel mesh Filtration class: EN779/ G2 G3 G4and F5