24H shipping Home Flat Filter M5 Iso Coarse 90% 135 x 365 mm MF/FAN M5 ISO COARSE 90% 135x365 mm zł33.31 Flat skeleton filter for recuperator and mechanical ventilation, dimensions 135x365 mm, filtration class M5, Iso Coarse efficiency 90% Economical low cost filter for basic filtration. Coarse pre-filter for air filtration in fan coil units, ventilation and recuperator unit. Add to cart