Wholesale Price G4 Coarse Filter Washable Air Filter Pre Filter 

Wholesale air filter pre filter ( G4 pre filter  coarse filter) is a kind of washable air filter air purifier for primary air filtration, which is made of high quality polyester synthetic fiber or filter cotton. It has the advantage of the large dust holding capacity, the low pressure loss in the initial period and lager air flow.

SPECIFICATIONS:

* Customizable Size

Material and characteristics

Frame material: aluminum plate frame, galvanized frame

Filter material: synthetic fiber

Net protection material: diamond net

Optional thickness of aluminum profile: 10mm,15mm,17mm, 21mm,46mm

Features:

1. High dust loading capacity

2. Low pressure drop

3. Large air flow

4. Efficiency: G2, G3, G4

5. Low cost 
6.Easy installation 
7.Long service life 
8.Customization is available. 

DETAILS:

1. Outer Frame

   Strong aluminum alloy frame to protect whole structure.

2. Filter Media

   Good quality filters cotton to collect dust effectively.

3. Product Design

   Well-organized metal support to prevent filter media falling.