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Merv 7 8 G4 Eu4 Cardboard Frame Air Filter With Aluminum Or Cardboard (manufacturer) - Buy Air Conditioning Filter,Pre-filter,Panel Filter Product on Alibaba.com
Flat filter with a metal frame G4 EU4 ISO COARSE 60% 180 x 200 x 25 mm
Precision air conditioner EU4 air filter used in High-tech environment