Skip to content

Foster 2 Series Couplers

The Foster 2 Series is the miniature 1/8" body industrial interchange, built for low-volume air tools, instruments, and compact pneumatic systems. This collection includes 2 Series couplers and plugs in brass, steel, and stainless with NPT, hose barb, tube, and panel mount terminations. Filter by thread, material, and coupler or plug to find your exact part.

  • Foster PD13-4, 3/8" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 4 Series, Steel
    Save 20% Save %
    $ 35.49
    $ 35.49 - $ 35.49
    $ 35.49
    $ 28.39
    $ 28.39 - $ 28.39
    $ 28.39

    Foster 2302S/SH, 1/8" 2 Series Coupler x 1/8" Female NPT, 303 Stainless (Heat)

    In stock

    Dependable, leak-free connections for air and light fluid lines. The Foster 2302S/SH is a 303 Stainless 1/8" coupler from the proven Foster 2 Serie...

    View full details
    $ 35.49
    $ 35.49 - $ 35.49
    $ 35.49
    $ 28.39
    $ 28.39 - $ 28.39
    $ 28.39
    Save 20% Save %
  • Foster PD13-4, 3/8" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 4 Series, Steel
    Save 20% Save %
    $ 37.89
    $ 37.89 - $ 37.89
    $ 37.89
    $ 30.29
    $ 30.29 - $ 30.29
    $ 30.29

    Foster BL2302S/S, 1/8" 2 Series Coupler x 1/8" Female NPT, 303 Stainless (Ball Lock)

    In stock

    Dependable, leak-free connections for air and light fluid lines. The Foster BL2302S/S is a 303 Stainless 1/8" coupler from the proven Foster 2 Seri...

    View full details
    $ 37.89
    $ 37.89 - $ 37.89
    $ 37.89
    $ 30.29
    $ 30.29 - $ 30.29
    $ 30.29
    Save 20% Save %
  • Foster PD13-4, 3/8" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 4 Series, Steel
    Save 20% Save %
    $ 32.79
    $ 32.79 - $ 32.79
    $ 32.79
    $ 26.19
    $ 26.19 - $ 26.19
    $ 26.19

    Foster 2302S/S, 1/8" 2 Series Coupler x 1/8" Female NPT, 303 Stainless

    In stock

    Dependable, leak-free connections for air and light fluid lines. The Foster 2302S/S is a 303 Stainless 1/8" coupler from the proven Foster 2 Series...

    View full details
    $ 32.79
    $ 32.79 - $ 32.79
    $ 32.79
    $ 26.19
    $ 26.19 - $ 26.19
    $ 26.19
    Save 20% Save %
  • Foster PD13-4, 3/8" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 4 Series, Steel
    Save 20% Save %
    $ 13.19
    $ 13.19 - $ 13.19
    $ 13.19
    $ 10.59
    $ 10.59 - $ 10.59
    $ 10.59

    Foster 2302HW, 1/8" 2 Series Coupler x 1/8" Female NPT, Heavy-Duty Brass, Stainless (Hot Water)

    In stock

    Dependable, leak-free connections for air and light fluid lines. The Foster 2302HW is a Heavy-Duty Brass, Stainless 1/8" coupler from the proven Fo...

    View full details
    $ 13.19
    $ 13.19 - $ 13.19
    $ 13.19
    $ 10.59
    $ 10.59 - $ 10.59
    $ 10.59
    Save 20% Save %
  • Foster PD13-4, 3/8" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 4 Series, Steel
    Save 20% Save %
    $ 12.39
    $ 12.39 - $ 12.39
    $ 12.39
    $ 9.89
    $ 9.89 - $ 9.89
    $ 9.89

    Foster 2302H, 1/8" 2 Series Coupler x 1/8" Female NPT, Heavy-Duty Brass, Steel (Heat)

    In stock

    Dependable, leak-free connections for air and light fluid lines. The Foster 2302H is a Heavy-Duty Brass, Steel 1/8" coupler from the proven Foster ...

    View full details
    $ 12.39
    $ 12.39 - $ 12.39
    $ 12.39
    $ 9.89
    $ 9.89 - $ 9.89
    $ 9.89
    Save 20% Save %
  • Foster PD13-4, 3/8" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 4 Series, Steel
    Save 20% Save %
    $ 18.59
    $ 18.59 - $ 18.59
    $ 18.59
    $ 14.89
    $ 14.89 - $ 14.89
    $ 14.89

    Foster BL2302, 1/8" 2 Series Coupler x 1/8" Female NPT, Heavy-Duty Brass, Steel (Ball Lock)

    In stock

    Dependable, leak-free connections for air and light fluid lines. The Foster BL2302 is a Heavy-Duty Brass, Steel 1/8" coupler from the proven Foster...

    View full details
    $ 18.59
    $ 18.59 - $ 18.59
    $ 18.59
    $ 14.89
    $ 14.89 - $ 14.89
    $ 14.89
    Save 20% Save %
  • Foster PD13-4, 3/8" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 4 Series, Steel
    Save 20% Save %
    $ 10.19
    $ 10.19 - $ 10.19
    $ 10.19
    $ 8.19
    $ 8.19 - $ 8.19
    $ 8.19

    Foster 2302, 1/8" 2 Series Coupler x 1/8" Female NPT, Heavy-Duty Brass, Steel

    In stock

    Dependable, leak-free connections for air and light fluid lines. The Foster 2302 is a Heavy-Duty Brass, Steel 1/8" coupler from the proven Foster 2...

    View full details
    $ 10.19
    $ 10.19 - $ 10.19
    $ 10.19
    $ 8.19
    $ 8.19 - $ 8.19
    $ 8.19
    Save 20% Save %
  • Foster PD13-4, 3/8" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 4 Series, Steel
    Save 19% Save %
    $ 3.19
    $ 3.19 - $ 3.19
    $ 3.19
    $ 2.59
    $ 2.59 - $ 2.59
    $ 2.59

    Foster 02-2, 1/8" 2 Series Plug x 1/8" Hose ID, Steel

    In stock

    Dependable, leak-free connections for air and light fluid lines. The Foster 02-2 is a Steel 1/8" plug from the proven Foster 2 Series — a miniature...

    View full details
    $ 3.19
    $ 3.19 - $ 3.19
    $ 3.19
    $ 2.59
    $ 2.59 - $ 2.59
    $ 2.59
    Save 19% Save %