Gasket and top cap
The gasket compresses against the collector housing to limit dirty-air bypass. The cap style and opening must match the mounting plate.
Industrial replacement filtration
Machinist's Vault Filter Cartridges Compatible with Donaldson® Torit DFO
Production-ready replacement cartridge filters for supported dust-collection systems. Choose the end-cap and gasket configuration that matches your collector.
- Made to match supported OEM dimensions
- Application-matched filter media options
- Built for dust collection and air-pollution control
- Cross-reference support before ordering
Dimension matchedConfirm OD, ID, length and end-cap style
Media selected by dutyChoose for dust type, loading and release
North American supportCross-reference help before purchase
Production replenishmentRepeat-order support for supported filters
Correct fit. Correct media.
Cartridge filtration built around your application.
Cartridge filters are the working surface of a dust collector. The right replacement must fit the housing, seal correctly and provide enough filter area for the process airflow and dust load.
Machinist’s Vault supplies replacement cartridges for supported industrial collectors and can help match dimensions, end-cap construction, gasket arrangement and media. Provide a current part number or photos when compatibility is uncertain.
Cartridge construction
Every layer protects airflow and filter life.
A replacement cartridge is a complete sealing and support system, not only pleated media. Each component must match the collector so dust travels through the media instead of bypassing it.
Expanded-metal outer screen
The outer screen supports the pleats and helps protect the filter surface from handling damage and heavy incoming dust.
Pleated filter media
The pleated pack provides the filtration area. Media chemistry and efficiency are selected for the dust, temperature, moisture and release characteristics.
Inner screen and bottom cap
The inner screen resists collapse under airflow and pulse cleaning. The bottom-cap geometry completes the structure and must match the collector configuration.
Before ordering, confirm:
outside diameterinside diameteroverall lengthtop and bottom cap stylegasket locationdust and operating conditions
Filter media selection
Choose the surface that handles your dust.
Media availability depends on the cartridge geometry and application. Confirm operating temperature and the contaminant before ordering.
Spun-bond polyester
Durable synthetic media for many dry industrial dust applications, with strong pleat stability and good dust release.
Hydrophobic / oleophobic polyester
Surface-treated polyester that helps resist moisture and oil in appropriate non-condensing applications.
Polyester with PTFE membrane
Surface-loading membrane media for improved fine-particle capture and easier release of suitable dust.
Nanofiber flame-retardant media
Fine-fiber surface layer over a supporting substrate for high efficiency in demanding dry-dust service.
80/20 cellulose-polyester
Cost-effective blended media for general dry dust collection where moisture resistance is not the primary requirement.
Special constructions
Aluminized, flame-retardant and application-specific configurations can be evaluated when the process requires them.
More than media
The complete cartridge construction affects performance.
Pleat count & spacing
Filter area and pleat geometry should support the collector airflow while leaving room for dust release during cleaning.
Gaskets & seals
Gasket location, material and compression must match the housing to prevent bypass around the cartridge.
End caps & cores
Open/open, open/closed and application-specific end treatments must match the collector’s mounting arrangement.
Bands & support screens
Structural components help maintain pleat spacing and cartridge shape through operation and pulse cleaning.
Filter-life guidance
Watch differential pressure—not just the calendar.
Replacement timing depends on dust loading, airflow, cleaning performance and process conditions. A rising, non-recovering differential pressure is a common sign that a cartridge is approaching the end of its useful service life.
- Record clean-filter pressureEstablish a baseline after installation.
- Inspect seals and pulse cleaningCorrect leaks or cleaning issues before condemning media.
- Replace as a matched setMixed restriction can unbalance airflow across the collector.
Cartridge filter FAQs
Answers for purchasing and replacement.
How do I confirm cartridge compatibility?
Match the current part number where possible, then confirm outside diameter, inside diameter, overall length, end-cap style, gasket location and media. Photos of both ends are helpful.
What is the difference between surface and depth filtration?
Surface-loading media captures more dust near the outer surface, which can improve pulse-cleaning release. Depth-loading media captures particles throughout the media structure and may be appropriate for different duties.
Does a higher MERV rating always mean a better filter?
No. Efficiency must be balanced with airflow, pressure drop, cleaning behaviour, dust characteristics and the collector design. Use the media specified for the application.
Are these HEPA filters?
MERV-rated cartridge media is not automatically HEPA. HEPA is a separate performance classification. Request an application review if certified HEPA performance is required.
Can you cross-reference another manufacturer’s part number?
Yes. Send the part number, collector model and cartridge dimensions. Compatibility should be confirmed before ordering.