Pure filteration standard Pre filter are high left (High dust holding capacity) non woven synthetic media filter and are available both in G3 and G4 (EU-3 and EU-4) categories. Media is sealed to frame with sealant. Frames are available in AI./SS/GI or MS/GI powder coated finish. Both Box type and flange type constructions are standard.
Fire retardant media filters are also available.
All filters meet Ashrae 52.2 and EN 779 specifications