Festool 203759 HF-CT 26/36/48 HP Main Filter

Festool 203759 HF-CT 26/36/48 HP Main Filter (PTFE) for AC Dust Extractors

The Festool 203759 HF-CT 26/36/48 HP main filter is a high-performance dust extractor filter designed to help maintain clean airflow when vacuuming fine dust and coarse debris in dust classes L and M. With its PTFE coating, it’s optimised for easier cleaning and is particularly useful where very fine dust can quickly clog standard filters.

Built for use with compatible Festool CT AC mobile dust extractors, the 203759 filter helps capture residual dust not retained by the filter bag, directing cleaner air back into the workspace for more comfortable day-to-day use.

Key Features

• PTFE-coated main filter: Optimised for simplified cleaning and reduced clogging when working with very fine dust.
• For dust classes L and M: Suitable for vacuuming mineral and wood dusts, along with common workshop and site debris.
• Flat fluted filter design: Supports efficient filtration with a stated restraint value of 99.9%.
• Autoclean-appropriate: Designed for use with AC (Autoclean) extractors for cleaner, more consistent extraction performance.
• Captures residual dust: Helps filter dust that may bypass the filter bag so cleaner air is returned to the room.

Specifications at a glance

Suitable applications

• Vacuuming fine dust and coarse dirt in workshops and on site (including fillers and wood dust)
• Jobs where very fine dust can quickly clog filters, especially with Autoclean-capable extractors
• General household and industrial dust collection where L/M class filtration is required