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  • Original price $ 65.89
    Original price $ 65.89 - Original price $ 65.89
    Original price $ 65.89
    Current price $ 52.69
    $ 52.69 - $ 52.69
    Current price $ 52.69

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

    In stock

    Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3303S/S is a 303 Stainless 1/4" industrial coupler from the Foster 3 Serie...

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    Original price $ 65.89
    Original price $ 65.89 - Original price $ 65.89
    Original price $ 65.89
    Current price $ 52.69
    $ 52.69 - $ 52.69
    Current price $ 52.69
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  • Original price $ 18.69
    Original price $ 18.69 - Original price $ 18.69
    Original price $ 18.69
    Current price $ 14.99
    $ 14.99 - $ 14.99
    Current price $ 14.99

    Foster 3303W, 1/4" Industrial Coupler x 3/8" Male NPT, 3 Series, Water, Brass/SS

    In stock

    Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3303W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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    Original price $ 18.69
    Original price $ 18.69 - Original price $ 18.69
    Original price $ 18.69
    Current price $ 14.99
    $ 14.99 - $ 14.99
    Current price $ 14.99
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  • Original price $ 6.39
    Original price $ 6.39 - Original price $ 6.39
    Original price $ 6.39
    Current price $ 5.09
    $ 5.09 - $ 5.09
    Current price $ 5.09

    Foster 3L52, 3/8" Hansen RL Interchange Air Plug x 3/8" Male NPT, 3FRL Series, Steel

    In stock

    Rugged air-line connections built for the jobsite. The Foster 3L52 is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL cou...

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    Original price $ 6.39
    Original price $ 6.39 - Original price $ 6.39
    Original price $ 6.39
    Current price $ 5.09
    $ 5.09 - $ 5.09
    Current price $ 5.09
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  • Original price $ 18.79
    Original price $ 18.79 - Original price $ 18.79
    Original price $ 18.79
    Current price $ 15.09
    $ 15.09 - $ 15.09
    Current price $ 15.09

    Foster 3L52G, 3/8" Hansen RL Interchange Air Plug Ball Check x 3/8" Male NPT, 3FRL Series, Steel

    In stock

    Rugged air-line connections built for the jobsite. The Foster 3L52G is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL co...

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    Original price $ 18.79
    Original price $ 18.79 - Original price $ 18.79
    Original price $ 18.79
    Current price $ 15.09
    $ 15.09 - $ 15.09
    Current price $ 15.09
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  • Original price $ 4.99
    Original price $ 4.99 - Original price $ 4.99
    Original price $ 4.99
    Current price $ 3.99
    $ 3.99 - $ 3.99
    Current price $ 3.99

    Foster 42-4, 3/8" Industrial Plug x 3/8" Male NPT, 4 Series, Steel

    In stock

    Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 42-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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    Original price $ 4.99
    Original price $ 4.99 - Original price $ 4.99
    Original price $ 4.99
    Current price $ 3.99
    $ 3.99 - $ 3.99
    Current price $ 3.99
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  • Original price $ 8.99
    Original price $ 8.99 - Original price $ 8.99
    Original price $ 8.99
    Current price $ 7.19
    $ 7.19 - $ 7.19
    Current price $ 7.19

    Foster 42-4B, 3/8" Industrial Plug x 3/8" Male NPT, 4 Series, Brass

    In stock

    Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 42-4B is a Brass 3/8" industrial plug from the Foster 4 Series — a high-fl...

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    Original price $ 8.99
    Original price $ 8.99 - Original price $ 8.99
    Original price $ 8.99
    Current price $ 7.19
    $ 7.19 - $ 7.19
    Current price $ 7.19
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  • Original price $ 8.99
    Original price $ 8.99 - Original price $ 8.99
    Original price $ 8.99
    Current price $ 7.19
    $ 7.19 - $ 7.19
    Current price $ 7.19

    Foster 42-4B, 4 Series, Industrial Plug, 3/8" Male NPT, Brass

    In stock

    Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 42-4B is a Brass 3/8" industrial plug from the Foster 4 Series — a high-fl...

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    Original price $ 8.99
    Original price $ 8.99 - Original price $ 8.99
    Original price $ 8.99
    Current price $ 7.19
    $ 7.19 - $ 7.19
    Current price $ 7.19
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  • Original price $ 14.49
    Original price $ 14.49 - Original price $ 14.49
    Original price $ 14.49
    Current price $ 11.59
    $ 11.59 - $ 11.59
    Current price $ 11.59

    Foster 42-4S/S, 3/8" Industrial Plug x 3/8" Male NPT, 4 Series, 303 Stainless

    In stock

    Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 42-4S/S is a 303 Stainless 3/8" industrial plug from the Foster 4 Series —...

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    Original price $ 14.49
    Original price $ 14.49 - Original price $ 14.49
    Original price $ 14.49
    Current price $ 11.59
    $ 11.59 - $ 11.59
    Current price $ 11.59
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  • Original price $ 12.99
    Original price $ 12.99 - Original price $ 12.99
    Original price $ 12.99
    Current price $ 10.39
    $ 10.39 - $ 10.39
    Current price $ 10.39

    Foster 42S-4, 3/8" Industrial Plug x 3/8" Male NPT, 4 Series, Free Swivel, Brass/Steel

    In stock

    Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 42S-4 is a Brass/Steel 3/8" industrial plug from the Foster 4 Series — a h...

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    Original price $ 12.99
    Original price $ 12.99 - Original price $ 12.99
    Original price $ 12.99
    Current price $ 10.39
    $ 10.39 - $ 10.39
    Current price $ 10.39
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  • Original price $ 25.19
    Original price $ 25.19 - Original price $ 25.19
    Original price $ 25.19
    Current price $ 20.09
    $ 20.09 - $ 20.09
    Current price $ 20.09

    Foster 4304, 3/8" Industrial Coupler x 3/8" Male NPT, 4 Series, Brass/Steel

    In stock

    Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4304 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

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    Original price $ 25.19
    Original price $ 25.19 - Original price $ 25.19
    Original price $ 25.19
    Current price $ 20.09
    $ 20.09 - $ 20.09
    Current price $ 20.09
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  • Original price $ 25.19
    Original price $ 25.19 - Original price $ 25.19
    Original price $ 25.19
    Current price $ 20.09
    $ 20.09 - $ 20.09
    Current price $ 20.09

    Foster 4304, 4 Series, Industrial Coupler, Manual, 3/8" Male NPT, Brass, Steel

    In stock

    Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4304 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

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    Original price $ 25.19
    Original price $ 25.19 - Original price $ 25.19
    Original price $ 25.19
    Current price $ 20.09
    $ 20.09 - $ 20.09
    Current price $ 20.09
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  • Original price $ 30.19
    Original price $ 30.19 - Original price $ 30.19
    Original price $ 30.19
    Current price $ 24.09
    $ 24.09 - $ 24.09
    Current price $ 24.09

    Foster 4304S, 3/8" Industrial Coupler x 3/8" Male NPT, 4 Series, Steam/EPDM, Brass body, Brass sleeve, SS valve

    In stock

    Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4304S is a Brass body, Brass sleeve, SS valve 3/8" industrial coupler from...

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    Original price $ 30.19
    Original price $ 30.19 - Original price $ 30.19
    Original price $ 30.19
    Current price $ 24.09
    $ 24.09 - $ 24.09
    Current price $ 24.09
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  • Original price $ 49.39
    Original price $ 49.39 - Original price $ 49.39
    Original price $ 49.39
    Current price $ 39.49
    $ 39.49 - $ 39.49
    Current price $ 39.49

    Foster 4304S/S, 3/8" Industrial Coupler x 3/8" Male NPT, 4 Series, 303 Stainless

    In stock

    Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4304S/S is a 303 Stainless 3/8" industrial coupler from the Foster 4 Serie...

    View full details
    Original price $ 49.39
    Original price $ 49.39 - Original price $ 49.39
    Original price $ 49.39
    Current price $ 39.49
    $ 39.49 - $ 39.49
    Current price $ 39.49
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  • Original price $ 29.49
    Original price $ 29.49 - Original price $ 29.49
    Original price $ 29.49
    Current price $ 23.59
    $ 23.59 - $ 23.59
    Current price $ 23.59

    Foster 4304W, 3/8" Industrial Coupler x 3/8" Male NPT, 4 Series, Water, Brass/SS

    In stock

    Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4304W is a Brass/SS 3/8" industrial coupler from the Foster 4 Series — a h...

    View full details
    Original price $ 29.49
    Original price $ 29.49 - Original price $ 29.49
    Original price $ 29.49
    Current price $ 23.59
    $ 23.59 - $ 23.59
    Current price $ 23.59
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  • Original price $ 15.29
    Original price $ 15.29 - Original price $ 15.29
    Original price $ 15.29
    Current price $ 12.19
    $ 12.19 - $ 12.19
    Current price $ 12.19

    Foster 4B3, 1/4" Hose x 3/8" Male NPT Reusable Hose Fitting, 1/2" OD, Reusable Series, Brass

    In stock

    A reusable hose-end fitting that screws onto the hose and threads to 3/8" male NPT — no crimping needed. The Foster 4B3 accepts 1/4" ID hose (1/2" ...

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    Original price $ 15.29
    Original price $ 15.29 - Original price $ 15.29
    Original price $ 15.29
    Current price $ 12.19
    $ 12.19 - $ 12.19
    Current price $ 12.19
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  • Original price $ 15.49
    Original price $ 15.49 - Original price $ 15.49
    Original price $ 15.49
    Current price $ 12.39
    $ 12.39 - $ 12.39
    Current price $ 12.39

    Foster 4B5, 1/4" Hose x 3/8" Male NPT Reusable Hose Fitting, 9/16" OD, Reusable Series, Brass

    In stock

    A reusable hose-end fitting that screws onto the hose and threads to 3/8" male NPT — no crimping needed. The Foster 4B5 accepts 1/4" ID hose (9/16"...

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    Original price $ 15.49
    Original price $ 15.49 - Original price $ 15.49
    Original price $ 15.49
    Current price $ 12.39
    $ 12.39 - $ 12.39
    Current price $ 12.39
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  • Original price $ 15.69
    Original price $ 15.69 - Original price $ 15.69
    Original price $ 15.69
    Current price $ 12.59
    $ 12.59 - $ 12.59
    Current price $ 12.59

    Foster 4B7, 1/4" Hose x 3/8" Male NPT Reusable Hose Fitting, 5/8" OD, Reusable Series, Brass

    In stock

    A reusable hose-end fitting that screws onto the hose and threads to 3/8" male NPT — no crimping needed. The Foster 4B7 accepts 1/4" ID hose (5/8" ...

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    Original price $ 15.69
    Original price $ 15.69 - Original price $ 15.69
    Original price $ 15.69
    Current price $ 12.59
    $ 12.59 - $ 12.59
    Current price $ 12.59
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  • Original price $ 14.29
    Original price $ 14.29 - Original price $ 14.29
    Original price $ 14.29
    Current price $ 11.49
    $ 11.49 - $ 11.49
    Current price $ 11.49

    Foster 4D11, 3/8" Hose x 3/8" Male NPT Reusable Hose Fitting, 3/4" OD, Reusable Series, Brass

    In stock

    A reusable hose-end fitting that screws onto the hose and threads to 3/8" male NPT — no crimping needed. The Foster 4D11 accepts 3/8" ID hose (3/4"...

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    Original price $ 14.29
    Original price $ 14.29 - Original price $ 14.29
    Original price $ 14.29
    Current price $ 11.49
    $ 11.49 - $ 11.49
    Current price $ 11.49
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  • Original price $ 19.19
    Original price $ 19.19 - Original price $ 19.19
    Original price $ 19.19
    Current price $ 15.39
    $ 15.39 - $ 15.39
    Current price $ 15.39

    Foster 4D13, 3/8" Hose x 3/8" Male NPT Reusable Hose Fitting, 13/16" OD, Reusable Series, Brass

    In stock

    A reusable hose-end fitting that screws onto the hose and threads to 3/8" male NPT — no crimping needed. The Foster 4D13 accepts 3/8" ID hose (13/1...

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    Original price $ 19.19
    Original price $ 19.19 - Original price $ 19.19
    Original price $ 19.19
    Current price $ 15.39
    $ 15.39 - $ 15.39
    Current price $ 15.39
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  • Original price $ 12.79
    Original price $ 12.79 - Original price $ 12.79
    Original price $ 12.79
    Current price $ 10.19
    $ 10.19 - $ 10.19
    Current price $ 10.19

    Foster 4D7, 3/8" Hose x 3/8" Male NPT Reusable Hose Fitting, 5/8" OD, Reusable Series, Brass

    In stock

    A reusable hose-end fitting that screws onto the hose and threads to 3/8" male NPT — no crimping needed. The Foster 4D7 accepts 3/8" ID hose (5/8" ...

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    Original price $ 12.79
    Original price $ 12.79 - Original price $ 12.79
    Original price $ 12.79
    Current price $ 10.19
    $ 10.19 - $ 10.19
    Current price $ 10.19
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  • Original price $ 12.89
    Original price $ 12.89 - Original price $ 12.89
    Original price $ 12.89
    Current price $ 10.29
    $ 10.29 - $ 10.29
    Current price $ 10.29

    Foster 4D9, 3/8" Hose x 3/8" Male NPT Reusable Hose Fitting, 11/16" OD, Reusable Series, Brass

    In stock

    A reusable hose-end fitting that screws onto the hose and threads to 3/8" male NPT — no crimping needed. The Foster 4D9 accepts 3/8" ID hose (11/16...

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    Original price $ 12.89
    Original price $ 12.89 - Original price $ 12.89
    Original price $ 12.89
    Current price $ 10.29
    $ 10.29 - $ 10.29
    Current price $ 10.29
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  • Original price $ 23.69
    Original price $ 23.69 - Original price $ 23.69
    Original price $ 23.69
    Current price $ 18.99
    $ 18.99 - $ 18.99
    Current price $ 18.99

    Foster 4P13, 1/2" Hose x 3/8" Male NPT Reusable Hose Fitting, 13/16" OD, Reusable Series, Brass

    In stock

    A reusable hose-end fitting that screws onto the hose and threads to 3/8" male NPT — no crimping needed. The Foster 4P13 accepts 1/2" ID hose (13/1...

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    Original price $ 23.69
    Original price $ 23.69 - Original price $ 23.69
    Original price $ 23.69
    Current price $ 18.99
    $ 18.99 - $ 18.99
    Current price $ 18.99
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  • Original price $ 24.59
    Original price $ 24.59 - Original price $ 24.59
    Original price $ 24.59
    Current price $ 19.69
    $ 19.69 - $ 19.69
    Current price $ 19.69

    Foster 4P15, 1/2" Hose x 3/8" Male NPT Reusable Hose Fitting, 7/8" OD, Reusable Series, Brass

    In stock

    A reusable hose-end fitting that screws onto the hose and threads to 3/8" male NPT — no crimping needed. The Foster 4P15 accepts 1/2" ID hose (7/8"...

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    Original price $ 24.59
    Original price $ 24.59 - Original price $ 24.59
    Original price $ 24.59
    Current price $ 19.69
    $ 19.69 - $ 19.69
    Current price $ 19.69
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  • Original price $ 25.89
    Original price $ 25.89 - Original price $ 25.89
    Original price $ 25.89
    Current price $ 20.69
    $ 20.69 - $ 20.69
    Current price $ 20.69

    Foster 4P17, 1/2" Hose x 3/8" Male NPT Reusable Hose Fitting, 15/16" OD, Reusable Series, Brass

    In stock

    A reusable hose-end fitting that screws onto the hose and threads to 3/8" male NPT — no crimping needed. The Foster 4P17 accepts 1/2" ID hose (15/1...

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    Original price $ 25.89
    Original price $ 25.89 - Original price $ 25.89
    Original price $ 25.89
    Current price $ 20.69
    $ 20.69 - $ 20.69
    Current price $ 20.69
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