OPTI-FRIT Sintered Frits for HPLC, UHPLC, LC/MS, and OEM Applications
OPTI-FRIT sintered frits are precision-engineered porous metal filtration components for liquid chromatography, mass spectrometry, flow control, and OEM fluidic applications. Manufactured by Optimize Technologies in Oregon City, Oregon, OPTI-FRIT frits are available in stainless steel and titanium configurations with controlled porosity, custom dimensions, and documented testing options.

Precision Sintered Frits for Chromatography and Fluidic Systems
Frits play a critical role in HPLC, UHPLC, LC/MS, and analytical fluidic systems. They help retain particles, support filtration, manage flow, protect sensitive components, and contribute to consistent system performance. For OEMs, column manufacturers, instrument builders, and laboratories with specialized requirements, the right frit material, porosity, diameter, and thickness can make a measurable difference.
OPTI-FRIT is designed for applications where off-the-shelf frits are not always the best fit. Whether you need stainless steel frits, bioinert titanium frits, custom pore sizes, unusual diameters, controlled thickness, or application-specific testing, Optimize Technologies can help develop a frit solution around your requirements.
Why Choose OPTI-FRIT?
Material Options
Available in 316L stainless steel or bioinert Grade 2 titanium for demanding chromatography, LC/MS, and high-pressure fluidic applications.
Controlled Porosity
Standard porosity options currently range from 0.1 um to 10 um, with additional custom options available depending on the application.
Custom Dimensions
Frit diameter, thickness, and geometry can be tailored to match OEM assemblies, replacement needs, or specialized flow paths.
Tested Performance
Available testing includes flow, backpressure, bubble point, particle retention, and mass spectrometry validation.
Documentation Available
Testing certificates are available for traceability, compliance support, and internal quality documentation.
Chromatography-Focused
Designed for LC, LC/MS, OEM chromatography, system testing, flow restrictors, and critical filtration applications.
Built for OEMs, Column Manufacturers, and Specialized LC Applications
OPTI-FRIT is currently offered as a custom quote product line. If you are developing an OEM assembly, sourcing frits for column manufacturing, replacing an existing frit, or trying to solve a filtration, flow, or backpressure issue, send us your specifications and application details. Our team can help evaluate material, porosity, size, thickness, testing needs, and production volume.
Common OPTI-FRIT Applications
- HPLC and UHPLC column frits
- LC/MS filtration and fluidic components
- OEM chromatography assemblies
- Inline filtration and sample path protection
- Flow restrictors and precision fluid-control components
- Analytical instrument testing and validation
- Custom porous metal filtration components
- Replacement frits for specialized chromatography workflows
How to Choose the Right Frit
Choosing the right frit depends on the application, particle size, solvent environment, pressure requirements, flow rate, compatibility needs, and whether the frit will be used in a standard laboratory workflow or an OEM assembly.
Porosity
Smaller pore sizes can provide finer particle retention, but may also increase backpressure. Larger pore sizes may improve flow but provide less fine-particle retention. For HPLC and UHPLC applications, porosity should be selected based on the particles being retained, system pressure, and acceptable flow resistance.
Material
316L stainless steel is commonly used for robust chromatography and filtration applications. Grade 2 titanium may be preferred when bioinert performance or improved corrosion resistance is important.
Diameter and Thickness
Frit diameter and thickness affect fit, mechanical support, pressure behavior, flow characteristics, and assembly compatibility. OPTI-FRIT can be customized to match application-specific requirements.
Testing Requirements
Depending on your application, testing may include flow, backpressure, bubble point, particle retention, mass spectrometry validation, and documentation certificates.
Representative Technical Specifications
The table below shows representative OPTI-FRIT configurations. Current availability, final specifications, and custom options should be confirmed with Optimize Technologies before ordering or designing around these dimensions.
| Size / Description | Porosity | Material |
|---|---|---|
| .083 OD x .039 TK | 0.5 um | SS |
| .044 OD x .038 TK | 2 um | Ti |
| .062 OD x .039 TK | 0.5 um | SS |
| .062 OD x .030 TK | 0.5 um | SS |
| .062 OD x .030 TK | 2 um | SS |
| .118 OD x .039 TK | 0.5 um | SS |
| .039 OD x .020 TK | 0.2 um | Ti |
| .062 OD x .039 TK | 5 um | SS |
| .125 OD x .058 TK | 40 um | SS |
| .062 OD x .039 TK | 2 um | SS |
| .187 OD x .062 TK | 0.2 um | SS |
| .039 OD x .020 TK | 2 um | SS |
| .039 OD x .062 TK | 2 um | SS |
| .062 OD x .039 TK | 2 um | Ti |
| .187 OD x .062 TK | 2 um | Ti |
| .187 OD x .062 TK | 0.5 um | SS |
| .181 OD x .039 TK | 0.5 um | SS |
| .062 OD x .062 TK | 2 um | SS |
| .021 OD x .010 TK | 0.5 um | Ti |
| .125 OD x .062 TK | 0.5 um | SS |
| .039 OD x .020 TK | 0.5 um | Ti |
| .039 OD x .062 TK | 0.5 um | Ti |
| .083 OD x .039 TK | 0.5 um | Ti |
| .082 OD x .020 TK | 0.3 um | Ti |
| .765 OD x .070 TK | 10 um | SS |
| .044 OD x .030 TK | 0.5 um | SS |
| .765 OD x .070 TK | 2 um | SS |
SS = stainless steel. Ti = titanium. Representative specifications are subject to change. Contact Optimize Technologies for current availability, custom sizes, and application-specific recommendations.
Custom Frit Capabilities
Optimize Technologies can work with customers to tailor sintered frits to specific performance and assembly requirements. Custom options may include material, outside diameter, thickness, porosity, testing requirements, and lot size.
Custom tooling options are available when an application requires a frit that does not match a standard configuration. Typical custom lead times may vary depending on material, geometry, testing, and production requirements.
Helpful Information for a Quote
- Material preference: 316L stainless steel, Grade 2 titanium, or application-specific recommendation
- Outside diameter and thickness
- Target porosity
- Quantity or estimated annual usage
- Application: HPLC, UHPLC, LC/MS, OEM assembly, flow restrictor, filtration, or other use
- Pressure, flow, and solvent conditions
- Testing or certificate requirements
- Drawing, sample, or existing part number if available
Frequently Asked Questions
What is a frit in HPLC?
In HPLC and UHPLC systems, a frit is a porous component used to retain particles, support filtration, distribute flow, or protect sensitive fluidic components. Frits are commonly used in columns, filters, fittings, and OEM assemblies.
Can OPTI-FRIT frits be customized?
Yes. OPTI-FRIT frits can be quoted around custom requirements such as material, diameter, thickness, porosity, testing, and lot size.
When should I choose titanium instead of stainless steel?
Titanium may be preferred when bioinert performance, corrosion resistance, or application-specific compatibility is important. Stainless steel is commonly used for robust chromatography and general high-pressure filtration applications.
Are OPTI-FRIT frits available for online purchase?
OPTI-FRIT is currently offered as a custom quote product line. Contact Optimize Technologies with your requirements and our team will help determine the best configuration.
Are testing certificates available?
Yes. Testing certificates are available to support traceability, quality documentation, and application requirements.
Can OPTI-FRIT frits be used in flow restrictors?
Yes. OPTI-FRIT frits can be tailored for flow restrictors and other precision fluid-control applications.
Request a Quote for OPTI-FRIT Sintered Frits
Send us your frit requirements, drawing, sample, or application details. Optimize Technologies can help you evaluate material, porosity, size, thickness, testing, and production options for HPLC, UHPLC, LC/MS, OEM, and custom filtration applications.