Quick Details ? Efficiency: G4 ? Construction: roll media ? Filtration Grade: Pre Filter ? Medium Material: Fiberglass ? Porosity: 0 ? Place of Origin: Guangdong, China (Mainland) ? Brand Name: longwell ? Model Number: LWF-G4 Specifications Available in 45%, 65%, 85%, and 95% efficiencies Available in standard depths of 12. 22, 29, 36 inches Durable soft-edged j-ch High termperature resistance Pre-Filter G3/G4; panel filter/fiberglass media with wire grids at both side. Advantages Suitable for high oven conditions Replaceable filter media Progressively built-up thermal bonded polyester fibre Application: Prefiltration of dust and dirt on Oven systems Type: Fiberglass media,panel filter with a wire support grid. Frame: Mill-finished aluminium header. Media: Fiberglass. EN 779:2002 filter class: G3.G4. ASHRAE 52.2:2007 filter class: MERV 6. MERV 7. Recommended final pressure drop: 250 Pa Temperature:200.C-250.C Max.in continous service. Fire rating: DIN 53438 class F1 Appliation: Car Plants 2 Wheelers Trucks & Tractors After Market Booths/Body Shops