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🍁 Fall Savings Are Here – Get Up to 30% Off Select Fittings & Hose!
🍁 Fall Savings Are Here – Get Up to 30% Off Select Fittings & Hose!

1/4" Body Industrial Interchange Pneumatic Couplers and Plugs, I/M

These 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, These fittings are a top choice for a wide range of pneumatic applications in construction and repair shops. Trust hpcouplers to deliver high-quality fittings that get the job done right.
  • Original price $ 18.99
    Original price $ 18.99 - Original price $ 18.99
    Original price $ 18.99
    Current price $ 13.29
    $ 13.29 - $ 13.29
    Current price $ 13.29

    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 $ 18.99
    Original price $ 18.99 - Original price $ 18.99
    Original price $ 18.99
    Current price $ 13.29
    $ 13.29 - $ 13.29
    Current price $ 13.29
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  • Original price $ 13.09
    Original price $ 13.09 - Original price $ 13.09
    Original price $ 13.09
    Current price $ 9.16
    $ 9.16 - $ 9.16
    Current price $ 9.16

    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 $ 13.09
    Original price $ 13.09 - Original price $ 13.09
    Original price $ 13.09
    Current price $ 9.16
    $ 9.16 - $ 9.16
    Current price $ 9.16
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  • Original price $ 19.19
    Original price $ 19.19 - Original price $ 19.19
    Original price $ 19.19
    Current price $ 13.43
    $ 13.43 - $ 13.43
    Current price $ 13.43

    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 $ 19.19
    Original price $ 19.19 - Original price $ 19.19
    Original price $ 19.19
    Current price $ 13.43
    $ 13.43 - $ 13.43
    Current price $ 13.43
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  • Original price $ 24.99
    Original price $ 24.99 - Original price $ 24.99
    Original price $ 24.99
    Current price $ 17.49
    $ 17.49 - $ 17.49
    Current price $ 17.49

    Foster 3203GB, 3 Series, Industrial Coupler, Automatic, 3/8" Female NPT, Brass

    In stock

    Series: 3 Part Number: 3203GB Interchange: Industrial, I/M Body: 1/4" Coupler, Automatic Thread: 3/8" Female NPT, FPT Material: Heavy-Duty...

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    Original price $ 24.99
    Original price $ 24.99 - Original price $ 24.99
    Original price $ 24.99
    Current price $ 17.49
    $ 17.49 - $ 17.49
    Current price $ 17.49
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  • Original price $ 50.99
    Original price $ 50.99 - Original price $ 50.99
    Original price $ 50.99
    Current price $ 35.69
    $ 35.69 - $ 35.69
    Current price $ 35.69

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

    In stock

    Series: 3 Part Number: 3303S/S Interchange: Industrial, I/M Body: 1/4" Coupler, Manual Thread: 3/8" Male NPT, MPT Material: 303 Stainless ...

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    Original price $ 50.99
    Original price $ 50.99 - Original price $ 50.99
    Original price $ 50.99
    Current price $ 35.69
    $ 35.69 - $ 35.69
    Current price $ 35.69
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  • Original price $ 12.09
    Original price $ 12.09 - Original price $ 12.09
    Original price $ 12.09
    Current price $ 8.46
    $ 8.46 - $ 8.46
    Current price $ 8.46

    Foster SG3303, 3 Series, Industrial Coupler, Manual, Sleeve Guard, 3/8" Male NPT, Brass

    In stock

    Series: 3 Part Number: SG3303 Interchange: Industrial, I/M Body: 1/4" Coupler, Manual, Sleeve Guard Thread: 3/8" Male NPT, MPT Material: H...

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    Original price $ 12.09
    Original price $ 12.09 - Original price $ 12.09
    Original price $ 12.09
    Current price $ 8.46
    $ 8.46 - $ 8.46
    Current price $ 8.46
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  • Original price $ 11.89
    Original price $ 11.89 - Original price $ 11.89
    Original price $ 11.89
    Current price $ 8.32
    $ 8.32 - $ 8.32
    Current price $ 8.32

    Foster SG3203, 3 Series, Industrial Coupler, Manual, Sleeve Guard, 3/8" Female NPT, Brass

    In stock

    Series: 3 Part Number: SG3203 Interchange: Industrial, I/M Body: 1/4" Coupler, Manual, Sleeve Guard Thread: 3/8" Female NPT, FPT Material:...

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    Original price $ 11.89
    Original price $ 11.89 - Original price $ 11.89
    Original price $ 11.89
    Current price $ 8.32
    $ 8.32 - $ 8.32
    Current price $ 8.32
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  • Original price $ 21.39
    Original price $ 21.39 - Original price $ 21.39
    Original price $ 21.39
    Current price $ 14.97
    $ 14.97 - $ 14.97
    Current price $ 14.97

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

    In stock

    Series: 3 Part Number: 3303GS 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 $ 21.39
    Original price $ 21.39 - Original price $ 21.39
    Original price $ 21.39
    Current price $ 14.97
    $ 14.97 - $ 14.97
    Current price $ 14.97
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  • Original price $ 7.99
    Original price $ 7.99 - Original price $ 7.99
    Original price $ 7.99
    Current price $ 5.59
    $ 5.59 - $ 5.59
    Current price $ 5.59

    Foster 14-3B, 3 Series, Industrial Plug, 3/8" Male NPT, Brass

    In stock

    Series: 3 Part Number: 14-3B Interchange: Industrial Body: 1/4" Plug Thread: 3/8" Male NPT, MPT Material: Brass Rated Pressure: 300 psi ...

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    Original price $ 7.99
    Original price $ 7.99 - Original price $ 7.99
    Original price $ 7.99
    Current price $ 5.59
    $ 5.59 - $ 5.59
    Current price $ 5.59
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  • Original price $ 13.19
    Original price $ 13.19 - Original price $ 13.19
    Original price $ 13.19
    Current price $ 9.23
    $ 9.23 - $ 9.23
    Current price $ 9.23

    Foster 3203, 3 Series, Industrial Coupler, Manual, 3/8" Female NPT, Brass, Steel

    In stock

    Series: 3 Part Number: 3203 Interchange: Industrial, I/M Body: 1/4" Coupler, Manual Thread: 3/8" Female NPT, FPT Material: Heavy-Duty Bras...

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    Original price $ 13.19
    Original price $ 13.19 - Original price $ 13.19
    Original price $ 13.19
    Current price $ 9.23
    $ 9.23 - $ 9.23
    Current price $ 9.23
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  • Original price $ 3.69
    Original price $ 3.69 - Original price $ 3.69
    Original price $ 3.69
    Current price $ 2.58
    $ 2.58 - $ 2.58
    Current price $ 2.58

    Foster 14-3, 3 Series, Industrial Plug, 3/8" Male NPT, Steel

    In stock

    Series: 3 Part Number: 14-3 Interchange: Industrial Body: 1/4" Plug Thread: 3/8" Male NPT, MPT Material: Heavy-Duty Steel Rated Pressure:...

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    Original price $ 3.69
    Original price $ 3.69 - Original price $ 3.69
    Original price $ 3.69
    Current price $ 2.58
    $ 2.58 - $ 2.58
    Current price $ 2.58
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  • Original price $ 24.09
    Original price $ 24.09 - Original price $ 24.09
    Original price $ 24.09
    Current price $ 16.86
    $ 16.86 - $ 16.86
    Current price $ 16.86

    Foster 3303GB, 3 Series, Industrial Coupler, Automatic, 3/8" Male NPT, Brass

    In stock

    Series: 3 Part Number: 3303GB Interchange: Industrial, I/M Body: 1/4" Coupler, Automatic Thread: 3/8" Male NPT, FPT Material: Heavy-Duty B...

    View full details
    Original price $ 24.09
    Original price $ 24.09 - Original price $ 24.09
    Original price $ 24.09
    Current price $ 16.86
    $ 16.86 - $ 16.86
    Current price $ 16.86
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  • Original price $ 21.79
    Original price $ 21.79 - Original price $ 21.79
    Original price $ 21.79
    Current price $ 15.25
    $ 15.25 - $ 15.25
    Current price $ 15.25

    Foster 3203GS, 3 Series, Industrial Coupler, Automatic, 3/8" Female NPT, Brass, Steel

    In stock

    Series: 3 Part Number: 3203GS Interchange: Industrial, I/M Body: 1/4" Coupler, Automatic Thread: 3/8" Female NPT, FPT Material: Heavy-Duty...

    View full details
    Original price $ 21.79
    Original price $ 21.79 - Original price $ 21.79
    Original price $ 21.79
    Current price $ 15.25
    $ 15.25 - $ 15.25
    Current price $ 15.25
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  • Original price $ 63.79
    Original price $ 63.79 - Original price $ 63.79
    Original price $ 63.79
    Current price $ 44.65
    $ 44.65 - $ 44.65
    Current price $ 44.65

    Foster 3203S/S, 3 Series, Industrial Coupler, Manual, 3/8" Female NPT, Stainless Steel

    In stock

    Series: 3 Part Number: 3203S/S Interchange: Industrial, I/M Body: 1/4" Coupler, Manual Thread: 3/8" Female NPT, FPT Material: 303 Stainles...

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    Original price $ 63.79
    Original price $ 63.79 - Original price $ 63.79
    Original price $ 63.79
    Current price $ 44.65
    $ 44.65 - $ 44.65
    Current price $ 44.65
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  • Original price $ 26.39
    Original price $ 26.39 - Original price $ 26.39
    Original price $ 26.39
    Current price $ 18.47
    $ 18.47 - $ 18.47
    Current price $ 18.47

    Foster 14S-3, 3 Series, Industrial Swivel Plug, 3/8" Male NPT, Steel, Brass

    In stock

    Series: 3 Part Number: 14S-3 Interchange: Industrial Body: 1/4" Swivel Plug Thread: 3/8" Male NPT, MPT Material: Heavy-Duty Steel, Brass ...

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    Original price $ 26.39
    Original price $ 26.39 - Original price $ 26.39
    Original price $ 26.39
    Current price $ 18.47
    $ 18.47 - $ 18.47
    Current price $ 18.47
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  • Original price $ 5.59
    Original price $ 5.59 - Original price $ 5.59
    Original price $ 5.59
    Current price $ 3.91
    $ 3.91 - $ 3.91
    Current price $ 3.91

    Foster 15-3, 3 Series, Industrial Plug, 3/8" Female NPT, Steel

    In stock

    Series: 3 Part Number: 15-3 Interchange: Industrial Body: 1/4" Plug Thread: 3/8" Female NPT, FPT Material: Heavy-Duty Steel Rated Pressur...

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    Original price $ 5.59
    Original price $ 5.59 - Original price $ 5.59
    Original price $ 5.59
    Current price $ 3.91
    $ 3.91 - $ 3.91
    Current price $ 3.91
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