Application : Pre filtration in air conditioning or industrial processing systems. Type : Coarse grade pleated panel filter. Frame : Standard galvanized mild steel, stainless steel or aluminum Media : Mixture of cotton and synthetic fiber. EN 779:2002 efficiency : G2 - G4. Gravimetric efficiency : 65% - 90%. Eurovent 4/5 efficiency : EU2 - EU4. Temperature : 70°C maximum in continuous service.