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USA Made Buna-n Gasket w/ Mesh - FDA Compliant - 1.5" to 6" - 5 Micron - 300 Micron
$20.00 - $140.00These USA Made Buna-n Gasket w/ Mesh is Approved by the FDA. The gaskets are made of Buna-N and have a 316 Stainless Steel 5 to 300 Micron Mesh Overmold. We recommend no more than a -40F operating... -
Buna-n Gasket with 300 Mesh & (50 Micron) - Various Sizes
USA LabBUNA300MESH$10.00 - $15.00Buna-N Tri-Clamp Gaskets are one of the best gaskets for closed loop systems due to it's excellent resistance to butane and propane. This Buna-N Gasket is rated for lower temperatures than viton, as... -
Buna-n Gasket with 100 Mesh & (150 Micron) - Various Sizes
USA LabBUNA100MESH$10.00 - $15.00This Buna-N Tri-Clamp Gasket is one of the best gaskets for closed loop systems due to it's excellent resistance to butane and propane. Buna Gaskets are rated for lower temperatures than -
Buna-n Gasket with 150 Mesh (100 Micron) - Various Sizes
USA LabBUNA150MESH$10.00 - $15.00Buna-N Tri-Camp Gaskets are one of the best gaskets for closed loop systems due to it's excellent resistance to butane and propane. Buna Gaskets are rated for lower temperatures than vito -
Buna-n Gasket with 50 Mesh (300 Micron) - Various Sizes
USA LabBUNA50MESH$10.00 - $15.00Buna-N Tri-Clamp Gaskets are one of the best gaskets for closed loop systems due to it's excellent resistance to butane and propane. Buna Gaskets are rated for lower temperatures than viton, a -
Buna-n Gasket with 2500 Mesh (5 Micron) - Various Sizes
USA LabBUNA2500MESH$10.00 - $20.00Buna-N (Nitrile) Tri-Clamp Gaskets are one of the best gaskets for closed loop systems due to its excellent resistance to butane and propane. Buna-N Gaskets are rated for -
Buna-n Gasket with 550 Mesh (25 Micron) - Various Sizes
USA LabBUNA550MESH$10.00 - $22.00Buna-N Tri-Clamp gaskets are one of the best gaskets for closed loop systems due to it's excellent resistance to butane and propane. This Buna-N Gasket is rated for lower temperatures than vit -
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150 Mesh
USA LabMESH150$7.00 - $30.00This 150 mesh (100 Micron) is ideal for a wide variety of screening and filtering applications. Stainless steel metal mesh will not corrode, keeps uniform openings, and will out perform our... -
USA Lab PTFE Envelope Tri-Clamp Gaskets with Viton Filler - 1.5" to 12" - USA Made - FDA Compliant
USA LabUSA-PTFE-V$5.00 - $99.99USA Lab PTFE Envelope Tri-Clamp Gaskets are the only choice when needing extreme chemical resistance and temperature range. These gaskets are extremely unique in their construction because they... -
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USA Lab PTFE Tri-Clamp Gaskets- 1.5" to 12" - USA Made - FDA Compliant - 1.5" to 12"
USA LabUSA-PTFE$2.99 - $89.99
Tri-Clamp Gaskets From USA Lab
FDA-Compliant Seals for Reliable Connections
Gaskets are the small parts that make a big difference. They provide the seal between tri-clamp fittings, keeping your system leak-free, sanitary, and compliant. At USA Lab, you'll find a complete selection of Buna-N and PTFE gaskets, with or without mesh inserts, so you can match your gasket choice to your exact process.
Designed for Hygienic, Leak-Free Systems
FDA-Compliant Materials
Available in Buna-N and PTFE to provide safe, reliable sealing for food, beverage, and laboratory applications.
Mesh Insert Options
Offered with fine mesh inserts ranging from 5 to 300 microns, allowing you to filter particulates directly at the gasket seal for cleaner flow.
Wide Size Range
Designed to fit a variety of setups, with tri-clamp connection sizes from 1.5" up to 12" for small- to large-scale systems.
Compare Gasket Options
| Model | Material | Mesh/Micron Rating | Size Range | Features |
|---|---|---|---|---|
| Buna-N Mesh Gaskets (FDA-Compliant) | Buna-N + stainless mesh | 5 µm (2500 mesh) 25 µm (550 mesh) 50 µm (300 mesh) 100 µm (150 mesh) 150 µm (100 mesh) 300 µm (50 mesh) |
1.5"–12" | Filters particulates directly at the seal; FDA-compliant Buna-N base |
| Buna-N Solid Gaskets | Buna-N (FDA-compliant) Buna-N Standard |
— | 1.5"–12" | Sanitary seals for food, beverage, and lab use |
| PTFE Gasket | PTFE (FDA-compliant) PTFE Standard |
— | 1.5"–12" | Ideal for solvent-heavy applications |
| PTFE Envelope Gaskets (Viton Filler) | PTFE + Viton | — | 1.5"–12" | Combines PTFE's chemical resistance with Viton's flexibility for a more durable seal |
Practical and Low-Maintenance
- Flexible choices — Pick from standard Buna-N, PTFE, or mesh gaskets for specific needs.
- Reusable design — Durable materials hold up to repeated cleaning cycles.
Match the Right Gasket to Your Work
- Filtering out fine particulates? → Choose a Buna-N mesh gasket (5–300 micron options).
- Need a simple, FDA-compliant seal? → Use a standard Buna-N gasket.
- Working with harsh solvents? → Select a PTFE gasket for chemical resistance.
- Want both strength and flexibility? → Go with a PTFE envelope gasket with Viton filler.
Why Choose USA Lab Gaskets
- Selection of FDA-compliant Buna-N and PTFE options.
- Mesh gasket options with micron ratings for inline filtration.
- Wide size availability for standard tri-clamp connections.
- U.S.-based support and fast shipping.
Equipment That Works With Your Gaskets
Pair your gaskets with other USA Lab tri-clamp components to build a complete system:
- Tri-clamps to secure gaskets and fittings tightly in place
- Mixing vessels and tanks for building sealed processing setups
- Buchner funnels using mesh gaskets for trapping particulates
- Reactors to keep high-pressure or solvent systems leak-free
