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1.pre-filte throught ai condition systerms, 2.pre-filter through multiple classes filter systerms, 3.pre-filter for square nets - details see: https://www.machineto.com/cardboard-frame-pre-filter-plank-pre-filter-for-air-conditioner-10219040

Cardboard frame pre-filter plank/pre filter for air conditioner

·Low al resistance

·large dust holding capacity

·Economical and practical

·Washable

Application: Filter dust , pre-filter through air filter program

Type:Synthetic fiber plank filter

Frame:stainless steel or aluminum frame or cardboard frame

Stainless steel:

Aluminum frame:

Cardboard frame:

Media:Synthetic fiber

Protect mesh: aluminum mesh or spray iron mesh

EN779 class: G2,G3,G4

Average arrestance:65%-85%,85%-90%,≥90%

DIN53438 Non-flammability Standard: F1

Final resistance:(suggest)100Pa-200Pa

Max. air flow:125% of the rated air flow

Temp. resistance:100°C

Humidity:100%

Specification:

Type	Dimension			Rated air flow (m3/h)	EN779	Media color	Initial pressure drop (Pa)
	Height(mm)	Width(mm)	Thickness (mm)
FRS-JS-1	595	595	21	3200	G2	White	≤15
FRS-JS-2	595	290	21	1600	G2	White
FRS-JS-3	595	595	21	3000	G3	Blue and white	≤18
FRS-JS-4	595	290	21	1500	G3	Blue and white
FRS-JS-5	595	595	21	2800	G4	Green & white	≤20
FRS-JS-6	595	290	21	1400	G4	Green & white

special size available upon request.

The more details can be offered anytime ASAP.

Just contact me,dear.