Quick Details ? Efficiency: G3-F9 ? Construction: Bag Filter ? Filtration Grade: Medium Filter ? Medium Material: Synthetic Fiber ? Porosity: 0 ? Place of Origin: Guangdong, China (Mainland) ? Brand Name: Longwell ? Model Number: BF ? color: yellow Advantages : Multi-pocket bag filter Comprehensive range of standard size Robust Metal header frame Unique pocket design Large surface area Controlled media spacing Application: Air conditioning applications. Type: Extended surface multi pocket bag filter. Case: Alu. Or Galvanised steel. Media: Synthetic Fibres EN779:2002 filter class: G4.F5.F6.F7.F8 ASHRAE 52.2:2007 filter class: MERV 11. MERV 13. MERV 14. Recommended final pressure drop: 450 Pa(suggested economical change point 250 Pa) Temperature: 80.C Max. in continuous service. Fire rating: UL900.