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Pre Filters


Also known as rough filters or coil protection filters. Available from EU-1 to EU-4 as per Europeans standards.

Offers sturdy construction and flexible combination of various components like coils, filters, etc. to suit specific applications.


Filters particles down to 10 to 20 microns ; with an efficiency of 85 % to 95 % .Recommended for comfort and non-critical industrial applications.

They can be installed directly in AHUs or mounted in banks.

Media And Its Function

Superior quality non woven synthetic filter media sandwiched between two layers of HDPE mesh , which act as a retainer and screens out large particles,thus,preventing them from being embedded in the media .The finer particles are filtered by the media .

( Also available other filter media like woven HDPE ,glass fiber etc )

Construction And Supports

The pleating of the media enhances the filtration area for better efficiency.

To eliminate the possibility of even a small amount of dirty air bypass,the media pack is securely bonded to the periphery of the enclosure frame using epoxy hardener .

Available in M.S. / Aluminum construction , spray painted with synthetic enamel paints.

Fine filters are available in the range of 15 to 20 (G3,G4 Class) and 10 micron (F5, F6 Class)

  • Low initial pressure drop
  • Light in weight and easy to handle
  • High cost / performance ratio
  • High dust holding capacity
  • Cleanable / Washable


  • Air-conditioning systems
  • Industrial ventilation systems
  • Coarse filtration and per-filtration.
Sr.No Type Flange or Box
1 Frame Galvanized steel / CRCA powder coated / Aluminum anodized / SS 304
2 Separators Aluminum
3 Filter Media HDPE media / Non woven synthetic media
4 Gasket Neoprene rubber gasket
5 BS EN 779 Class G3, G4
6 Filter G3, G4 50 – 80% Arrestances
7 Efficiency/Arrestance F5 80- 90 % Arrestance
8 Euro vent Class EU 3, EU 4

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