4RT9

4V rigid bag filter class F9 according to EN 779:2012 (Em ≥ 95%). The low energy impact 4V frame provides a relatively low resistance to airflow and a high filter surface resulting in a longer service life. Filter media made of water repellent glass fibre paper with a calibrated step pleat. Continuous thermoplastic thread separators. Frame made of plastic (polystyrene) injection-moulded. Filtration of airborne particles in civil and industrial air conditioning systems. It is commonly used as prefiltration stage of HEPA filters.

4V rigid bag filter class ePM1 85% according to ISO 16890. The low energy impact 4V frame provides a re-latively low resistance to airflow and a high filter surface resulting in a longer service life.

Frame made of plastic (polystyrene), injection-moulded. Polyurethane sealant (bicomponent).

Filtration of airborne particles in civil and industrial air conditioning systems. It is commonly used as prefiltration stage of HEPA filters

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