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Cardboard Pre-filter

Filtration Grade: G4
Filter Media: Dual-layer Synthetic Fiber
Structure: Waterproof paper frame with evenly spaced claws for segmentation
Continuous Operating Temperature: ≤68°C
Recommended Final Resistance: ≤250 Pa
Main Application: Suitable for use as a pre-filtration device in the inlet and exhaust systems of air conditioning unit ventilation.
Features: Non-hygroscopic, low initial pressure drop, long service life, and high structural strength