Structure:

Frame	Filter Media	Gasket
Extruded Aluminum/Galvanized steel sheet/Plastic	Progressively structured polyester	EVA or none for plastic frame

Product Features:
-Good filtration performance with self-supporting pockets
-High dust holding capacity and energy saving
-Robust metal header frame

Application:
As prefilters for intake, exhaust and recirculating air systems, extending the operational lifetimes
of the downstream fine filters.

General technical data:
-G2~G4 EN779; MERV3-8 ASHRAE
-DIN 53438 Flammability: F1
-UL 900 Standard: Class 2
-Max air flow rate: 125% of nominal air flow
-Final pressure drop: 250Pa
-Thermal Stability: 100℃
-Moisture resistance: 100% RH

Sample data:

W*H*D(mm)	Pocket Number(pcs)	Filter Class	Filter Area(m2)	Airflow(CMH)	Intial Pressure Drop(Pa)
592*592*600	6	G3	4.2	3400	20
		G4		3400	34
592*592*530	6	G3	3.6	3400	32
		G4		3400	37
592*592*350	6	G3	2.3	3400	38
		G4		3400	42

https://drive.google.com/file/d/0Bxk0k7JxzX13VENHN2E3dDRURXc/view