Dust filter DEMCiflex 0323 — replacement PC dust filter, 125.2 × 248.5 mm, black/grey

DEMCiflex 0323 is a replacement dust filter for PC ventilation openings designed to fit rectangular fan mounts and vents measuring approximately 125.2 × 248.5 mm. Manufactured in a two-tone black and grey finish, the filter provides a fine barrier that reduces dust ingress while preserving airflow. It is compatible with intake or exhaust positions and is suitable for use with desktop systems that require routine maintenance to keep internal components clean. This particular filter is custom made to fit over ferrous or non-ferrous vents of an EKWB XTX double 120mm radiator fan.

Advantages

The DEMCiflex 0323 filter combines a low-profile design with materials chosen to balance particle retention and airflow. Its dimensions make it suitable for standard rectangular fan openings, and the colour scheme helps it blend with common PC interiors. The mesh construction is washable and reusable, supporting repeated maintenance cycles without significant loss of performance. Installation and removal are straightforward, enabling quick cleaning and reducing downtime for system maintenance.

Suitable for

• Dust protection for intake or exhaust fan mounts with matching rectangular vent dimensions
• External coverage of EKWB XTX double 120mm radiator fan vents (ferrous and non-ferrous)
• Desktop PC systems where routine filter maintenance is performed
• Cases and radiator shrouds that accept external or internal rectangular filters

Key specifications

• Filter dimensions: 125.2 × 248.5 mm (approximate install size)
• Colour: black and grey
• Construction: washable mesh designed for particle retention with minimal airflow restriction
• Mounting compatibility: rectangular fan/vent openings and external coverage for radiator fan vents
• Reusable: designed for repeated cleaning and reinstallation

How to use

Position the DEMCiflex 0323 filter over the corresponding rectangular vent or fan opening, ensuring the dimensions align and the filter sits flush against the surface. If mounting over an EKWB XTX double 120mm radiator fan vent, place the filter so it covers the full vent area on ferrous or non-ferrous surfaces. Secure the filter according to the case or radiator shroud's attachment method (clips, magnets, screws or adhesive frames as applicable). Periodically remove the filter for inspection and cleaning to maintain optimal airflow and dust protection.

Recommendations

Clean the filter every 1–3 months depending on environmental dust levels; rinse with lukewarm water and allow to dry completely before reinstalling. Avoid aggressive cleaning agents or high-pressure washing that could deform the mesh. Verify that the filter does not contact moving fan blades and ensure airflow direction is not obstructed after installation.