Filter Fab Manufacturing Corporation

FilterFab F-Series Filters
Remove Dry Particulates from Gas Lines

All gas lines have dry contaminants (such as pipe scale, dirt, and rust) that will damage or even destroy your downstream equipment. Using a Filterfab F-Series Dry Filter will remove all forms of dry contamination, lengthening the life of your equipment and saving thousands of dollars in maintenance costs.

F-Series Dry Filters have:

  • 4 different closure styles. FilterFab has designed its lid closures to make filter element changeout as easy and as fast as possible. 2" thru 6" line sizes in 285 psi ratings use a quick-opening swing-bolt lid or blind flange, while larger and higher pressure filters incorporate a blind flange with lifting lug or a lifting davit. Optional threaded high-pressure closures are also available.
  • 3 pressures (MAOP). Available in 285, 740 and 1480 psi.
  • 7 standard line sizes. Choose from 2" to 12". Custom sizes to 24" available.
  • A wide range of flowrates. 5,000 to 25,000,000 scfh.
  • 2 types of filter cartridges. Our standard replaceable filter cartridge uses polyester-felted media or polyester/cellulose media, both of which remove 99.9% of all solid particles 10-microns and larger. This is well beyond the recommendations of all major manufacturers of meters and regulators. Our standard filter size is 10 microns, but filters with retention ratings as low as 0.3 micron to as high as 75 microns are available.


Call FilterFab's Sales Department for pricing and a representative in your area. Many model sizes are kept in stock for quick delivery.


  • Build a FilterFab F-Series Part Number

    To choose the correct FilterFab model for your application, start by building a part number. You will need to know line size and pressure rating. See this example:

    F-Series Build Chart
  • Now check the model number you have determined above against the flowchart below to make sure that your choice will handle the flowrate of your application.

    FLOWRATE in SCFH for F-Series Filters

    Line Pressure in PSI

    Model Number 1/4 5 25 50 100 150 250 500 750 1000 1200 1400
    F2M 8400 11700 20000 26000 34000 41000 - - - - - -
    F2 25500 29000 57000 72000 95000 114M 260M 355M 433M 575M 685M 780M
    F3 50000 65000 122M 144M 220M 265M 570M 820M 950M 1.2MM 1.4MM 1.5MM
    F4 83000 120M 210M 250M 380M 470M 970M 1.3MM 1.9MM 2.5MM 3.0MM 3.3MM
    F6 240M 270M 500M 555M 910M 1.1MM 2.0MM 2.7MM 3.1MM 4.0MM 5.0MM 5.5MM
    F8 410M 490M 770M 1.0MM 1.6MM 2.0MM 3.5MM 5.0MM 6.0MM 8.0MM 10MM 11MM
    F10 550M 910M 1.1MM 1.9MM 2.6MM 3.0MM 6.0MM 7.5MM 9.0MM 12MM 14MM 17MM
    F12 865M 1.2MM 2.2MM 2.5MM 4.0MM 4.8MM 8.8MM 11MM 14MM 18MM 22MM 25MM

    swipe left to see the whole table.

Choose a Style

Now look at the styles below the flowrate chart to see the standard body and closure style of your filter. Choose whether to print a hard copy in either Adobe .pdf or AutoCAD .dwg format. To download a .pdf or dwg file, right-click on a link and select "Save Target As..."

Blind Flange with Lifting Lug

PSI Line Size Model Number Dimensions
(A x B x F)
Filter Element Downloads
740 2" F2-740F 26" x 19" x 15" 2385K140 PDF | DWG
740 3" F3-740F 32" x 25" x 18" 2394K5 PDF | DWG
740 4" F4-740F 38" x 30" x 20" 2022K5 PDF | DWG
1480 2" F2-1480F 27" x 20" x 15" 2385K140 PDF | DWG
1480 3" F3-1480F 33" x 26" x 18" 2394K5 PDF | DWG
1480 4" F4-1480F 38" x 30" x 20" 2022K5 PDF | DWG
Legs or ring bases are optional on all above housings.

Blind Flange with Ligting Lug

Blind Flange With Lifting Davit

PSI Line Size Model Number Dimensions
A x B x F
Filter Element Downloads
285 8" F8-285F 47" x 33" x 28" 2054K5 PDF DWG
285 10" F10-285F 60" x 44" x 32" (2)2070K5 PDF DWG
285 12" F12-285F 66" x 47" x 40" (2)2083K5 PDF DWG
740 6" F6-740F 40" x 29" x 24" 2035K5 PDF DWG
740 8" F8-740F 48" x 34" x 28" 2054K5 PDF DWG
740 10" F10-740F 61" x 45" x 32" (2)2070K5 PDF DWG
740 12" F12-740F 67" x 48" x 40" (2)2083K5 PDF DWG
1480 6" F6-1480F 41" x 29" x 24" 2035K5 PDF DWG
1480 8" F8-1480F 49" x 25" x 28" 2055K5 PDF DWG
Legs or ring bases are optional on all above housings.

Blind Flange with Li

Blind Flange With Hydraulic Davit

PSI Line Size Model Number Dimensions
A x B x F
Filter Element Downloads
1480 10" F10-1480F 62" x 46" x 32" (2)2070K5 PDF DWG
1480 12" F12-1480F 68" x 49" x 40" (2)2083K5 PDF DWG
Legs or ring bases are optional on both housings above.

Blind Flange with Hydraulic

  • We Love Special Designs!

    Are there any special design changes we can make to the standard unit you have chosen to help you fit into a tight space, remove a particularly stubborn contaminant, resist a high temperature, or simply make your job easier? Email a sketch of your requirement as an Adobe PDF or an AutoCAD DWG file. We will contact you with our suggestions. FilterFab started in business in 1983 by building special designs, so you can count on us to find a solution to your unique problem.


  • Our Model F2M "Miniature" filter was designed to be used in lower-flow applications where a strainer is just too coarse but your budget does not allow for our standard size F2 housing. Shown here with a full-size F2 the F2M is available with flanged inlet/outlet or either female or male pipe connections. This housing is an excellent choice for tight spaces and small meter runs in any mounting orientation.

    F2M Mini
  • Call 724-643-4000 or email a FilterFab Sales Representative to find out more about pricing, delivery lead time, optional equipment, or special design requirements. You may also want to visit our Contact Us page or send us a Request for Quotation.

  • Housings are designed and built to ASME Boiler & Pressure Vessel Code, Section VIII, Division 1 specifications by Section IX certified welders but not U-Code stamped without an extra charge.