Key Features
Maintains SuctionThe self-cleaning fleece design helps prevent fine dust from caking inside the bag, so your CT 48 keeps pulling hard longer instead of fading off halfway through the bag. Fine Dust ControlCaptures particles down to 5 microns and works as a pre-filter, which helps reduce the load on the main HEPA filter and can cut down on filter replacements. CT 48 FitThis Festool dust bag is built specifically for the CT 48 dust extractor, with an integrated sealing flap that makes bag changes cleaner and less of a mess on the job.
Overview
The Festool 497539 CT 48 Self Cleaning Filter Bag, 5 Pack is a replacement dust extractor filter bag set made for the Festool CT 48. This is a dust extractor filter bag designed for fine dust collection and suction maintenance. Model Number 497539. If you use your extractor for sanding dust, drywall dust, or other fine material that normally cakes up a bag fast, this is the bag setup that helps the machine stay more consistent from start to finish.
What matters here is the SELFCLEAN fleece construction. On a standard paper-style bag, fine dust tends to stick to the inside walls and build a layer that chokes airflow. Festool built this bag to flex as the extractor runs, which helps shake loose that buildup and keep the inside surface working. In real use, that means better suction consistency, fuller use of bag capacity, and less frustration when the extractor starts feeling weak before the bag is actually full.
The bag also acts as a pre-filter and captures particles down to 5 microns. That is important for two reasons: it improves dust collection performance for fine material, and it helps protect the main HEPA filter from unnecessary loading. If your work creates a lot of fine dust, extending HEPA filter life is not a small thing. It saves maintenance time and helps keep the extractor performing the way it should.
Festool also got the disposal side right. Each bag has an integrated flap that seals the opening when it is time to pull it out. That keeps collected dust from spilling back into the shop, van, or client space. The fleece material is also described as tear resistant, which matters when you are pulling a full bag packed with fine dust and chips. Less chance of blowout means less cleanup and less wasted time.
Compatibility is simple and specific: this bag is suitable for the Festool CT 48 dust extractor. That direct fit matters because extractor bags are not one-size-fits-all, and using the right bag helps maintain airflow, filtration, and clean bag changes. This 5-pack gives you a practical stock-up quantity for regular shop or jobsite use without overbuying.
If you already own a CT 48 and work with fine dust often, this is the right consumable to keep on hand. It makes the most sense for woodworkers, remodelers, finish carpenters, drywall pros, and anyone relying on dust extraction for cleaner work and better tool performance. It is not a glamorous purchase, but it is the kind of accessory that keeps an expensive dust extractor working the way you paid for it to work.
Festool 497539 CT 48 Self Cleaning Filter Bag Keeps Airflow Working
This bag is built for the kind of fine dust that usually kills suction first. The self-cleaning fleece helps the bag use more of its capacity before airflow drops off, which is exactly what you want when the extractor is running all day.
- SELFCLEAN fleece construction helps reduce internal dust caking
- Captures particles down to 5 microns and acts as a pre-filter
- Integrated closure flap helps keep disposal cleaner
What’s in the Box
- (5) Festool SELFCLEAN Filter Bags for CT 48
Key Specifications
| Tool Type | Dust Extractor Filter Bag |
|---|---|
| Compatible Dust Extractor | Festool CT 48 |
| Bag Material | Self-Cleaning Fleece |
| Filtration Size | Down to 5 microns |
| Pack Quantity | 5 bags |
| HEPA Support | Acts as a pre-filter to help protect the main HEPA filter |
| Weight | 0.95 lbs |
| Made In | Germany |
Compatibility
Dust Extractor Fit Designed for the Festool CT 48 dust extractor. Filter System Role Acts as a pre-filter to capture fine dust before it reaches the main HEPA filter.
Built For
Dust ExtractionWoodworkingDrywall Dust CollectionRemodelingShop CleanupJobsite Cleanup
Pro Tip
If you are collecting a lot of fine sanding or drywall dust with a CT 48, swap the bag before it is packed rock solid. These self-cleaning bags use their flex to fight caking, and leaving a little room helps them keep airflow up and protects the main HEPA filter longer.
Tool Nut’s Take
Tool Nut’s Take
A small accessory that makes your CT 48 work like it should
The Festool 497539 CT 48 Self Cleaning Filter Bag, 5 Pack is the kind of consumable that earns its keep by maintaining suction, keeping bag changes cleaner, and helping your extractor’s main filter last longer.
- Who it’s for: CT 48 owners who deal with fine dust regularly and want dependable dust extraction instead of fading airflow.
- Why it stands out: The self-cleaning fleece design is the real story here. It helps fight caking better than basic paper-style bags and lets you use more of the bag before performance drops.
- Worth knowing: This is a CT 48-specific bag set, so make sure your extractor matches. If you burn through bags with sanding or drywall work, keeping a 5-pack on the shelf is just smart.
Common Questions
- What dust extractor does this bag fit? It is designed for the Festool CT 48 dust extractor.
- What is the main benefit of the self-cleaning design? It helps prevent fine dust from caking on the inside of the bag, which supports more consistent suction efficiency.
- How fine of a particle can it capture? Festool states the bag captures particles down to 5 microns.
- Does it help protect the main filter? Yes. The bag acts as a pre-filter, helping reduce the load on the main HEPA filter.
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