W3/W4 filter set

Original Swegon CASA filter set. Suitable for all Swegon CASA W3 and W4 air handling units.

The delivery includes:

• 1 Filter class ISO ePM1 50 % (F7) for supply air
• 1 ISO coarse (G3) for extract air
• 1 piece of non-combustible filter for PPI 20 supply air

Spare part code W304FS

Choose original Swegon CASA filters!

Using original filters ensures that your device has a valid factory warranty.

How often should filters be changed?

Filters should be changed at least once a year, but preferably twice a year – in spring and autumn.

How to change filters?

Replacing the filters is quick and easy and requires no tools or specialist knowledge. For more information, please refer to the maintenance manual or service video below.

Visit CASA W3 Genius and CASA W4 Genius the latest equipment.

Filter replacement guide FS_GUIDE