Structure:Are the internal and external diamond metal net, and the middle is filter paper, end cover is PU glue 
1. Media rating: 5-10um 
2. Fillter efficiency :98% 
3. Working life:about 2000hours 
4. Material :filter paper of pure wood pulp from USA and Korea 
5.Construction:Cartridge Filter 
6.Filtration Grade: Hepa filter 

Part number 
Model Original P/N Size 
GA11 1613872000 Φ119*134 
GA18 1619126900 Φ138*115 
GA22 1613872000 Φ119*134 
GA30 1613740700 Φ159*375 
GA37 1613740800 
(2901043100) Φ194*407 
GA55 1613950100 Φ246*358 
GA55 1613950300 Φ246*410 
GA75 1613800400 
(2901043100) Φ220*406 
GA75 1619279800 
(2901005000) Φ230*370 
GA90C 1030097900 
(2906009200) 
1621054799 Φ350*345 
GA110 Φ350*345 
GA132 Φ350*345 
GA160 Φ350*345 
GA220 1627009499 
1621054600 Φ390*460 
GA250 Φ390*460 
1030107000 Φ300*108