1.plate not easy fall off 2.air compressor air filter cartridge 3.high efficiency air filter 4.ISO9001 5.response within 24h ... used for all kinds of air compressed station, esspecially for centrifugal ,screw, vane air compressor.1.air compressor2.refrigeration compressor3.dust collector4 ... , 25um, 50um, 80um, 100um, 160um, 180um, 280um...2.low pressure under 1.3Mpa3.different size.4.filter material: SS ...