Filter accessory Rittal 3173.120, PET housing, white, pack of 5 for ventilation/filter units

Rittal 3173.120 is a pack of five replacement pleated filters with a white polyethylene terephthalate (PET) housing designed for use with ventilation and outlet filter units in industrial racks and electrical cabinets. The pleated filter design increases volumetric air flow compared with conventional chopped-fibre mats, improving cooling unit performance while lowering energy consumption. These spare filters help trap particles, reduce dust accumulation inside enclosures and extend intervals between maintenance operations.

Advantages

The pleated PET housing provides a larger effective filter area and improved filtration efficiency without increasing the footprint of the filter element. Higher volumetric air flow supports more effective heat dissipation from components and cooling units, which can reduce running costs through lower energy demand. Supplying five identical replacement elements in one pack simplifies stock management and ensures continuity of maintenance cycles for cabinets and ventilation systems.

Suitable for

• Replacement for ventilation and outlet filter units in electrical cabinets and industrial racks
• Enclosures requiring protection from dust and particulate ingress
• Routine maintenance and spare parts stocking for cooling and filtration systems

When it may not be suitable

This filter accessory is intended for use with compatible ventilation and outlet filter units; it may not fit non-standard or proprietary filter housings. It is not a high-efficiency particulate air (HEPA) filter and therefore is not suitable where HEPA-level filtration or removal of ultrafine particles is required.

Key specifications

• Filter housing material: polyethylene terephthalate (PET)
• Colour: white
• Packaging: pack of 5 filter elements
• Design: pleated filter construction for increased effective surface area
• Application: ventilation/outlet filter units for racks and electrical cabinets

How to use

Identify the compatible ventilation or outlet filter unit and remove the old filter element according to the enclosure manufacturer's instructions. Install the Rittal PET filter element into the filter housing, ensuring correct orientation and secure seating to prevent bypass. After installation, verify airflow and that the filter is properly retained by the unit. Replace filters at intervals recommended by the equipment manufacturer or sooner when visibly contaminated to maintain cooling performance and reduce dust ingress.

What to consider before purchase

• Confirm physical compatibility with your filter housing and ventilation unit dimensions.
• Determine whether PET pleated filtration meets your particulate removal requirements (not HEPA-level).
• Plan replacement intervals based on operating environment and dust load.

Usage recommendations

For best results, keep a small stock of replacement elements (such as this 5-pack) and follow scheduled inspections. Replace filters when airflow is noticeably reduced or when significant dust accumulation is visible to preserve cooling efficiency and protect enclosure components.