Air Filtration Products: HHE/DCAF-G4+F7-BAG
The Duet bag format pairs a G4 pre face with F7 fine pockets in one assembly: bag-filter dust holding with built-in pre-protection. For high-airflow AHUs that need staged filtration but have bank space for only one filter size, it is the whole train in a single frame.
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More from Other Filtration Products
Two stages in one frame: a Duet G4 pre layer bonded ahead of an M6 medium layer, one filter, a complete coarse-to-medium train.
The Duet G4 + F7: coarse pre-filtration and fine filtration combined in a single rigid pack.
Gas-tight HEPA terminal housings: the ceiling and duct-end boxes that turn a HEPA filter into a validated terminal.
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