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1,Paper or aluminum metal frame, 2,lower resistance .larger air volume, 3,Applicable to the primary filtration of, air conditio - details see: https://www.machineto.com/pleated-pre-air-filterwashable-pleated-panel-air-filter-10216769

paper pre pleated filter

• large filtering area ,lower resistance ,high dirt holding

wet -strength paper board frame,two piece frame construction

two mating section of the frame overlap one another to provide a double wall.

• galvanized surpport grid,the media surported with expanded metal to ensure strength and filters integrity

efficiency : MERV 7 ,25~30% (dust - spot)

longevity : 3 months

different filter media and size can be customized .

Standard specification:

model	Outside Dimensions	Rated air flow	Initial resistance	Efficiency (class)		Model of filter media
KW-CXZ-8j	295×295×46mm 12″×12″×2″	800 m3/h	25pa	MERV6/ 7 MERV10	G3 G4 F5	Green, blue ,white etc. sythetic fiber
KW-CXZ-13j	495×295×46mm 20″×12″×2″	1300 m3/h
KW-CXZ-22j	495×495×46mm 24″×20″×2″	2200m3/h
KW-CXZ-16j	595×295×46mm 24″×12″×2″	1600m3/h
KW-CXZ-27j	595×495×46mm 24″×20″×2″	2700m3/h
KW-CXZ-32j	595×595×46mm 24″×24″×2″	3200 m3/h