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ZSI Foster - 3 Series, 1/4" Body Industrial Interchange Pneumatic Couplers and Plugs

ZSI Foster's "3 Series" pneumatic fittings are the perfect solution for your industrial and manufacturing needs, including construction and repair shops. Made of durable brass or steel, these fittings are designed to connect flexible tubing such as polyurethane and nylon in various sizes. The quick-connect design allows for easy attachment and detachment from your pneumatic system, while their 1/4" industrial interchange compatibility means they can be used with fittings from other manufacturers. With their reliability and versatility, the "3 Series" fittings are a top choice for a wide range of pneumatic applications in construction and repair shops. Trust ZSI Foster to deliver high-quality fittings that get the job done right.
  • Original price $ 1.79 - Original price $ 1.79
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    $ 1.79
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    Current price $ 1.79

    Foster 10-3, 3 Series, Industrial Plug, 1/4" Male NPT, Steel

    In stock

    Series: 3 Part Number: 10-3 Interchange: Industrial Body: 1/4" Plug Thread: 1/4" Male NPT, MPT Material: Heavy-Duty Steel Rated Pressure:...

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    Original price $ 1.79 - Original price $ 1.79
    Original price
    $ 1.79
    $ 1.79 - $ 1.79
    Current price $ 1.79
  • Original price $ 9.49 - Original price $ 9.49
    Original price
    $ 9.49
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    Current price $ 9.49

    Foster 3003, 3 Series, Industrial Coupler, Manual, 1/4" Female NPT, Brass, Steel

    In stock

    Series: 3 Part Number: 3003 Interchange: Industrial, I/M Body: 1/4" Coupler, Manual Thread: 1/4" Female NPT, FPT Material: Heavy-Duty Bras...

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    Original price $ 9.49 - Original price $ 9.49
    Original price
    $ 9.49
    $ 9.49 - $ 9.49
    Current price $ 9.49
  • Original price $ 12.99 - Original price $ 12.99
    Original price
    $ 12.99
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    Current price $ 12.99

    Foster FM3003, 3 Series, Industrial Coupler, Automatic, 1/4" Female NPT, Brass

    In stock

    Series: 3 Part Number: FM3003 Interchange: Industrial, I/M Body: 1/4" Coupler, Automatic Thread: 1/4" Female NPT, FPT Material: Heavy-Duty...

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    Original price $ 12.99 - Original price $ 12.99
    Original price
    $ 12.99
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    Current price $ 12.99
  • Original price $ 2.39 - Original price $ 2.39
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    $ 2.39
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    Current price $ 2.39

    Foster 10-3B, 3 Series, Industrial Plug, 1/4" Male NPT, Brass

    In stock

    Series: 3 Part Number: 10-3B Interchange: Industrial, I/M Body: 1/4" Plug Thread: 1/4" Male NPT, MPT Material: Heavy-Duty Steel Rated Pre...

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    Original price $ 2.39 - Original price $ 2.39
    Original price
    $ 2.39
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    Current price $ 2.39
  • Original price $ 1.99 - Original price $ 1.99
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    $ 1.99
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    Current price $ 1.99

    Foster 11-3, 3 Series, Industrial Plug, 1/4" Female NPT, Steel

    In stock

    Series: 3 Part Number: 11-3 Interchange: Industrial, I/M Body: 1/4" Plug Thread: 1/4" Female NPT, FPT Material: Heavy-Duty Steel Rated Pr...

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    Original price $ 1.99 - Original price $ 1.99
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    $ 1.99
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    Current price $ 1.99
  • Original price $ 8.59 - Original price $ 8.59
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    $ 8.59
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    Current price $ 8.59

    Foster 3103, 3 Series, Industrial Coupler, Manual, 1/4" Male NPT, Brass, Steel

    In stock

    Series: 3 Part Number: 3103 Interchange: Industrial, I/M Body: 1/4" Coupler, Manual Thread: 1/4" Male NPT, MPT Material: Heavy-Duty Brass,...

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    Original price $ 8.59 - Original price $ 8.59
    Original price
    $ 8.59
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    Current price $ 8.59
  • Original price $ 2.49 - Original price $ 2.49
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    Current price $ 2.49

    Foster 12-3, 3 Series, Industrial Plug, 1/8" Male NPT, Steel

    In stock

    Series: 3 Part Number: 12-3 Interchange: Industrial Body: 1/4" Plug Thread: 1/8" Male NPT, MPT Material: Heavy-Duty Steel Rated Pressure:...

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    Original price $ 2.49 - Original price $ 2.49
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    $ 2.49
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    Current price $ 2.49
  • Original price $ 2.99 - Original price $ 2.99
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    Current price $ 2.99

    Foster 11-3B, 3 Series, Industrial Plug, 1/4" Female NPT, Brass

    In stock

    Series: 3 Part Number: 11-3B Interchange: Industrial, I/M Body: 1/4" Plug Thread: 1/4" Female NPT, FPT Material: Heavy-Duty Brass Rated P...

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    Original price $ 2.99 - Original price $ 2.99
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    Current price $ 2.99
  • Original price $ 7.99 - Original price $ 7.99
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    Current price $ 7.99

    Foster SG3103, 3 Series, Industrial Coupler, Manual, Sleeve Guard, 1/4" Male NPT, Brass

    In stock

    Series: 3 Part Number: SG3103 Interchange: Industrial, I/M Body: 1/4" Coupler, Manual, Sleeve Guard Thread: 1/4" Male NPT, MPT Material: H...

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    Original price $ 7.99 - Original price $ 7.99
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    Current price $ 7.99
  • Original price $ 2.49 - Original price $ 2.49
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    Current price $ 2.49

    Foster 16-3, 3 Series, Industrial Plug, 1/4" Hose Barb, Steel

    In stock

    Series: 3 Part Number: 16-3 Interchange: Industrial Body: 1/4" Plug Thread: 1/4" Hose Barb Material: Heavy-Duty Steel Rated Pressure: 30...

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    Original price $ 2.49 - Original price $ 2.49
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    Current price $ 2.49
  • Original price $ 3.79 - Original price $ 3.79
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    Current price $ 3.79

    Foster 17-3B, 3 Series, Industrial Plug, 3/8" Hose Barb, Brass

    In stock

    Series: 3 Part Number: 17-3B Interchange: Industrial Body: 1/4" Plug Thread: 3/8" Hose Barb Material: Heavy-Duty Brass Rated Pressure: 3...

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    Original price $ 3.79 - Original price $ 3.79
    Original price
    $ 3.79
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    Current price $ 3.79
  • Original price $ 3.49 - Original price $ 3.49
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    $ 3.49
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    Current price $ 3.49

    Foster 13-3B, 3 Series, Industrial Plug, 1/8" Female NPT, Brass

    In stock

    Series: 3 Part Number: 13-3B Interchange: Industrial Body: 1/4" Plug Thread: 1/8" Female NPT, FPT Material: Heavy-Duty Brass Rated Pressu...

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    Original price $ 3.49 - Original price $ 3.49
    Original price
    $ 3.49
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    Current price $ 3.49
  • Original price $ 13.99 - Original price $ 13.99
    Original price
    $ 13.99
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    Current price $ 13.99

    Foster 3003GB, 3 Series, Industrial Coupler, Automatic, 1/4" Female NPT, Brass

    In stock

    Series: 3 Part Number: 3003GB Interchange: Industrial, I/M Body: 1/4" Coupler, Automatic Thread: 1/4" Female NPT, FPT Material: Heavy-Duty...

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    Original price $ 13.99 - Original price $ 13.99
    Original price
    $ 13.99
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    Current price $ 13.99
  • Original price $ 14.99 - Original price $ 14.99
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    $ 14.99
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    Current price $ 14.99

    Foster 3003GS, 3 Series, Industrial Coupler, Automatic, 1/4" Female NPT, Brass, Steel

    In stock

    Series: 3 Part Number: 3003GS Interchange: Industrial, I/M Body: 1/4" Coupler, Automatic Thread: 1/4" Female NPT, FPT Material: Heavy-Duty...

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    Original price $ 14.99 - Original price $ 14.99
    Original price
    $ 14.99
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    Current price $ 14.99
  • Original price $ 8.49 - Original price $ 8.49
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    $ 8.49
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    Current price $ 8.49

    Foster SG3603, 3 Series, Industrial Coupler, Manual, Sleeve Guard, 1/4" Hose Barb, Brass

    In stock

    Series: 3 Part Number: SG3603 Interchange: Industrial, I/M Body: 1/4" Coupler, Manual, Sleeve Guard Thread: 1/4" Hose Barb Material: Heavy...

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    Original price $ 8.49 - Original price $ 8.49
    Original price
    $ 8.49
    $ 8.49 - $ 8.49
    Current price $ 8.49
  • Original price $ 13.39 - Original price $ 13.39
    Original price
    $ 13.39
    $ 13.39 - $ 13.39
    Current price $ 13.39

    Foster FM3103, 3 Series, Industrial Coupler, Automatic, 1/4" Male NPT, Brass

    In stock

    Series: 3 Part Number: FM3103 Interchange: Industrial, I/M Body: 1/4" Coupler, Automatic Thread: 1/4" Male NPT, MPT Material: Heavy-Duty B...

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    Original price $ 13.39 - Original price $ 13.39
    Original price
    $ 13.39
    $ 13.39 - $ 13.39
    Current price $ 13.39
  • Original price $ 7.99 - Original price $ 7.99
    Original price
    $ 7.99
    $ 7.99 - $ 7.99
    Current price $ 7.99

    Foster SG3003, 3 Series, Industrial Coupler, Manual, Sleeve Guard, 1/4" Female NPT, Brass

    In stock

    Series: 3 Part Number: SG3003 Interchange: Industrial, I/M Body: 1/4" Coupler, Manual, Sleeve Guard Thread: 1/4" Female NPT, FPT Material:...

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    Original price $ 7.99 - Original price $ 7.99
    Original price
    $ 7.99
    $ 7.99 - $ 7.99
    Current price $ 7.99
  • Original price $ 13.49 - Original price $ 13.49
    Original price
    $ 13.49
    $ 13.49 - $ 13.49
    Current price $ 13.49

    Foster FM3203, 3 Series, Industrial Coupler, Automatic, 3/8" Female NPT, Brass

    In stock

    Series: 3 Part Number: FM3203 Interchange: Industrial, I/M Body: 1/4" Coupler, Automatic Thread: 3/8" Female NPT, FPT Material: Heavy-Duty...

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    Original price $ 13.49 - Original price $ 13.49
    Original price
    $ 13.49
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    Current price $ 13.49
  • Original price $ 11.69 - Original price $ 11.69
    Original price
    $ 11.69
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    Current price $ 11.69

    Foster 3003HW, 3 Series, Industrial Coupler, Manual, 1/4" Female NPT, Brass (HOT WATER)

    In stock

    Series: 3 Part Number: 3003HW Interchange: Industrial, I/M Body: 1/4" Coupler, Manual Thread: 1/4" Female NPT, FPT Material: Heavy-Duty Br...

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    Original price $ 11.69 - Original price $ 11.69
    Original price
    $ 11.69
    $ 11.69 - $ 11.69
    Current price $ 11.69
  • Original price $ 9.99 - Original price $ 9.99
    Original price
    $ 9.99
    $ 9.99 - $ 9.99
    Current price $ 9.99

    Foster 3303, 3 Series, Industrial Coupler, Manual, 3/8" Male NPT, Brass, Steel

    In stock

    Series: 3 Part Number: 3303 Interchange: Industrial, I/M Body: 1/4" Coupler, Manual Thread: 3/8" Male NPT, MPT Material: Heavy-Duty Brass,...

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    Original price $ 9.99 - Original price $ 9.99
    Original price
    $ 9.99
    $ 9.99 - $ 9.99
    Current price $ 9.99
  • Original price $ 13.69 - Original price $ 13.69
    Original price
    $ 13.69
    $ 13.69 - $ 13.69
    Current price $ 13.69

    Foster FM3303, 3 Series, Industrial Coupler, Automatic, 3/8" Male NPT, Brass

    In stock

    Series: 3 Part Number: FM3303 Interchange: Industrial, I/M Body: 1/4" Coupler, Automatic Thread: 3/8" Male NPT, MPT Material: Heavy-Duty B...

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    Original price $ 13.69 - Original price $ 13.69
    Original price
    $ 13.69
    $ 13.69 - $ 13.69
    Current price $ 13.69
  • Original price $ 2.99 - Original price $ 2.99
    Original price
    $ 2.99
    $ 2.99 - $ 2.99
    Current price $ 2.99

    Foster 16-3B, 3 Series, Industrial Plug, 1/4" Hose Barb, Brass

    In stock

    Series: 3 Part Number: 16-3B Interchange: Industrial Body: 1/4" Plug Thread: 1/4" Hose Barb Material: Heavy-Duty Brass Rated Pressure: 3...

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    Original price $ 2.99 - Original price $ 2.99
    Original price
    $ 2.99
    $ 2.99 - $ 2.99
    Current price $ 2.99
  • Original price $ 16.09 - Original price $ 16.09
    Original price
    $ 16.09
    $ 16.09 - $ 16.09
    Current price $ 16.09

    Foster 3603GS, 3 Series, Industrial Coupler, Automatic, 1/4" Hose Barb, Brass, Steel

    In stock

    Series: 3 Part Number: 3603GS Interchange: Industrial, I/M Body: 1/4" Coupler, Automatic Thread: 1/4" Hose Barb Material: Heavy-Duty Brass...

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    Original price $ 16.09 - Original price $ 16.09
    Original price
    $ 16.09
    $ 16.09 - $ 16.09
    Current price $ 16.09
  • Original price $ 8.99 - Original price $ 8.99
    Original price
    $ 8.99
    $ 8.99 - $ 8.99
    Current price $ 8.99

    Foster 3603, 3 Series, Industrial Coupler, Manual, 1/4" Hose Barb, Brass, Steel

    In stock

    Series: 3 Part Number: 3603 Interchange: Industrial, I/M Body: 1/4" Coupler, Manual Thread: 1/4" Hose Barb Material: Heavy-Duty Brass, Ste...

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    Original price $ 8.99 - Original price $ 8.99
    Original price
    $ 8.99
    $ 8.99 - $ 8.99
    Current price $ 8.99