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GasShield® Gasket Filters

Mott GasShield® Gasket Filters are built to withstand extreme operating conditions and deliver optimum filtration performance. GasShield Gasket Filters allow integration of a filter without adding length to the gas system. GasShield Gasket Filters are compatible with most inert and specialty gases, fit inside 1/4 ” face seal fittings, with either 1” or 3” long porous elements, and come complete with integral face seal gasket.

Information Request

Have a question? Can’t find what you’re looking for? Call us at 860.747.6333, or submit an information request form and someone will get back to you within 48 hours.

Product Specs

Operating Conditions

» Maximum Operating Temperature for Inert Gas: 450°C

» Maximum Differential Pressure: 1000 psid Forward or Reverse (68.9 barg)


» Hardware: 316LSS or Nickel

» Filter Medium: 316L SS or Nickel

» Hastelloy or custom materials contact us

Particle Removal Size: ≥ 0.003 μm
Helium Leak Rating: 1 x 10-9 atm cc/sec
Moisture Contribution: <10 ppb after 1 hour at low-flow ambient purge per SEMI F27 test method
Total Hydrocarbons: Below detectable limits per SEMASPEC 90120396B test method
Particle Shedding: Zero particle contribution above background (<1 particle/ft³) per SEMI F43-0308 test method
Flow Data

More flow curves available, consult factory or spec sheets.

Fittings & Dimensions

Typical Installation

Part Description Flow Rating (SLPM) Filter Material Face Seal Gasket Size (Inches) Element Length (Inches) Changeout Interval
GSG-V4-1-N 1 Nickel ¼ 1 System Dependent
GSG-V4-3-N 3 Nickel ¼ 3 System Dependent
20 Nickel ¼ 1 System Dependent
GSG-V5-1-2N 50 Nickel ½ 1 System Dependent
GSG-V4-1-S 1 316L SS ¼ 1 System Dependent
GSG-V4-3-S 3 316L SS ¼ 3 System Dependent
GSG-V4-1-2S 20 316L SS ¼ 1 System Dependent
GSG-V5-1-2S 50 316L SS ½ 1 System Dependent

*Custom designs and fittings available.

Our Design Capabilities

  • Flow/pressure drop curves and filtration efficiency for virtually any system design
  • Gas compatibility considerations
  • Custom filter media, fitting material and hardware design configurations available

Relevant Services

Design Expertise – From start to finish, we customize solutions based on your design parameters – challenge us!

Fluid Modeling – Our extensive applications have built a library of data to increase the accuracy of our flow models to provide initial performance and feasibility estimates prior to building prototypes.

Extensive Partner Network – If a material is not listed or capability not in-house, we maintain an extensive network of partners for new material procurement, advanced manufacturing capabilities, and validation testing.

Engineering Support – Utilize our expert project engineers to consult your process and select the right gasket filter for your application.