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Our most popular couplers, hose, clamps, and irrigation parts. Updated automatically based on what customers actually buy.

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Original price $ 29.79
Original price $ 29.79 - Original price $ 29.79
Original price $ 29.79
Current price $ 23.79
$ 23.79 - $ 23.79
Current price $ 23.79

Foster SD7-4, 3/8" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 5/8" OD, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster SD7-4 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — ...

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Original price $ 29.79
Original price $ 29.79 - Original price $ 29.79
Original price $ 29.79
Current price $ 23.79
$ 23.79 - $ 23.79
Current price $ 23.79
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Original price $ 34.79
Original price $ 34.79 - Original price $ 34.79
Original price $ 34.79
Current price $ 27.79
$ 27.79 - $ 27.79
Current price $ 27.79

Foster SB7-4, 3/8" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 5/8" OD, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster SB7-4 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — ...

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Original price $ 34.79
Original price $ 34.79 - Original price $ 34.79
Original price $ 34.79
Current price $ 27.79
$ 27.79 - $ 27.79
Current price $ 27.79
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Original price $ 35.49
Original price $ 35.49 - Original price $ 35.49
Original price $ 35.49
Current price $ 28.39
$ 28.39 - $ 28.39
Current price $ 28.39

Foster SB5-4, 3/8" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 9/16" OD, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster SB5-4 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — ...

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Original price $ 35.49
Original price $ 35.49 - Original price $ 35.49
Original price $ 35.49
Current price $ 28.39
$ 28.39 - $ 28.39
Current price $ 28.39
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Original price $ 33.79
Original price $ 33.79 - Original price $ 33.79
Original price $ 33.79
Current price $ 27.09
$ 27.09 - $ 27.09
Current price $ 27.09

Foster SB3-4, 3/8" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 1/2" OD, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster SB3-4 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — ...

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Original price $ 33.79
Original price $ 33.79 - Original price $ 33.79
Original price $ 33.79
Current price $ 27.09
$ 27.09 - $ 27.09
Current price $ 27.09
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Original price $ 34.49
Original price $ 34.49 - Original price $ 34.49
Original price $ 34.49
Current price $ 27.59
$ 27.59 - $ 27.59
Current price $ 27.59

Foster 1814W, 3/8" Industrial Coupler x 1/2" Push-On Hose Stem, 4 Series, Water, Brass/SS

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 1814W is a Brass/SS 3/8" industrial coupler from the Foster 4 Series — a h...

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Original price $ 34.49
Original price $ 34.49 - Original price $ 34.49
Original price $ 34.49
Current price $ 27.59
$ 27.59 - $ 27.59
Current price $ 27.59
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Original price $ 28.99
Original price $ 28.99 - Original price $ 28.99
Original price $ 28.99
Current price $ 23.19
$ 23.19 - $ 23.19
Current price $ 23.19

Foster BL1814, 3/8" Industrial Coupler x 1/2" Push-On Hose Stem, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL1814 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series —...

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Original price $ 28.99
Original price $ 28.99 - Original price $ 28.99
Original price $ 28.99
Current price $ 23.19
$ 23.19 - $ 23.19
Current price $ 23.19
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Original price $ 27.49
Original price $ 27.49 - Original price $ 27.49
Original price $ 27.49
Current price $ 21.99
$ 21.99 - $ 21.99
Current price $ 21.99

Foster 1814, 3/8" Industrial Coupler x 1/2" Push-On Hose Stem, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 1814 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

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Original price $ 27.49
Original price $ 27.49 - Original price $ 27.49
Original price $ 27.49
Current price $ 21.99
$ 21.99 - $ 21.99
Current price $ 21.99
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Original price $ 32.69
Original price $ 32.69 - Original price $ 32.69
Original price $ 32.69
Current price $ 26.09
$ 26.09 - $ 26.09
Current price $ 26.09

Foster 1714W, 3/8" Industrial Coupler x 3/8" Push-On Hose Stem, 4 Series, Water, Brass/SS

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 1714W is a Brass/SS 3/8" industrial coupler from the Foster 4 Series — a h...

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Original price $ 32.69
Original price $ 32.69 - Original price $ 32.69
Original price $ 32.69
Current price $ 26.09
$ 26.09 - $ 26.09
Current price $ 26.09
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Original price $ 27.09
Original price $ 27.09 - Original price $ 27.09
Original price $ 27.09
Current price $ 21.69
$ 21.69 - $ 21.69
Current price $ 21.69

Foster BL1714, 3/8" Industrial Coupler x 3/8" Push-On Hose Stem, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL1714 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series —...

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Original price $ 27.09
Original price $ 27.09 - Original price $ 27.09
Original price $ 27.09
Current price $ 21.69
$ 21.69 - $ 21.69
Current price $ 21.69
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Original price $ 24.99
Original price $ 24.99 - Original price $ 24.99
Original price $ 24.99
Current price $ 19.99
$ 19.99 - $ 19.99
Current price $ 19.99

Foster 1714, 3/8" Industrial Coupler x 3/8" Push-On Hose Stem, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 1714 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

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Original price $ 24.99
Original price $ 24.99 - Original price $ 24.99
Original price $ 24.99
Current price $ 19.99
$ 19.99 - $ 19.99
Current price $ 19.99
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Original price $ 33.39
Original price $ 33.39 - Original price $ 33.39
Original price $ 33.39
Current price $ 26.79
$ 26.79 - $ 26.79
Current price $ 26.79

Foster 4904S, 3/8" Industrial Coupler x 1/2" Hose ID, 4 Series, Steam/EPDM, Brass body, Brass sleeve, SS valve

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4904S is a Brass body, Brass sleeve, SS valve 3/8" industrial coupler from...

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Original price $ 33.39
Original price $ 33.39 - Original price $ 33.39
Original price $ 33.39
Current price $ 26.79
$ 26.79 - $ 26.79
Current price $ 26.79
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Original price $ 33.99
Original price $ 33.99 - Original price $ 33.99
Original price $ 33.99
Current price $ 27.19
$ 27.19 - $ 27.19
Current price $ 27.19

Foster BL4904, 3/8" Industrial Coupler x 1/2" Hose ID, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL4904 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series —...

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Original price $ 33.99
Original price $ 33.99 - Original price $ 33.99
Original price $ 33.99
Current price $ 27.19
$ 27.19 - $ 27.19
Current price $ 27.19
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Original price $ 27.39
Original price $ 27.39 - Original price $ 27.39
Original price $ 27.39
Current price $ 21.89
$ 21.89 - $ 21.89
Current price $ 21.89

Foster 4904, 3/8" Industrial Coupler x 1/2" Hose ID, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4904 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

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Original price $ 27.39
Original price $ 27.39 - Original price $ 27.39
Original price $ 27.39
Current price $ 21.89
$ 21.89 - $ 21.89
Current price $ 21.89
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Original price $ 32.39
Original price $ 32.39 - Original price $ 32.39
Original price $ 32.39
Current price $ 25.89
$ 25.89 - $ 25.89
Current price $ 25.89

Foster 4804W, 3/8" Industrial Coupler x 3/8" Hose ID, 4 Series, Water, Brass/SS

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4804W is a Brass/SS 3/8" industrial coupler from the Foster 4 Series — a h...

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Original price $ 32.39
Original price $ 32.39 - Original price $ 32.39
Original price $ 32.39
Current price $ 25.89
$ 25.89 - $ 25.89
Current price $ 25.89
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Original price $ 34.49
Original price $ 34.49 - Original price $ 34.49
Original price $ 34.49
Current price $ 27.59
$ 27.59 - $ 27.59
Current price $ 27.59

Foster 4804S, 3/8" Industrial Coupler x 3/8" Hose ID, 4 Series, Steam/EPDM, Brass body, Brass sleeve, SS valve

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4804S is a Brass body, Brass sleeve, SS valve 3/8" industrial coupler from...

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Original price $ 34.49
Original price $ 34.49 - Original price $ 34.49
Original price $ 34.49
Current price $ 27.59
$ 27.59 - $ 27.59
Current price $ 27.59
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Original price $ 50.09
Original price $ 50.09 - Original price $ 50.09
Original price $ 50.09
Current price $ 39.99
$ 39.99 - $ 39.99
Current price $ 39.99

Foster 4804S/S, 3/8" Industrial Coupler x 3/8" Hose ID, 4 Series, 303 Stainless

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4804S/S is a 303 Stainless 3/8" industrial coupler from the Foster 4 Serie...

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Original price $ 50.09
Original price $ 50.09 - Original price $ 50.09
Original price $ 50.09
Current price $ 39.99
$ 39.99 - $ 39.99
Current price $ 39.99
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Original price $ 33.59
Original price $ 33.59 - Original price $ 33.59
Original price $ 33.59
Current price $ 26.89
$ 26.89 - $ 26.89
Current price $ 26.89

Foster BL4804, 3/8" Industrial Coupler x 3/8" Hose ID, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL4804 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series —...

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Original price $ 33.59
Original price $ 33.59 - Original price $ 33.59
Original price $ 33.59
Current price $ 26.89
$ 26.89 - $ 26.89
Current price $ 26.89
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Original price $ 28.19
Original price $ 28.19 - Original price $ 28.19
Original price $ 28.19
Current price $ 22.59
$ 22.59 - $ 22.59
Current price $ 22.59

Foster 4804, 3/8" Industrial Coupler x 3/8" Hose ID, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4804 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

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Original price $ 28.19
Original price $ 28.19 - Original price $ 28.19
Original price $ 28.19
Current price $ 22.59
$ 22.59 - $ 22.59
Current price $ 22.59
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Original price $ 32.99
Original price $ 32.99 - Original price $ 32.99
Original price $ 32.99
Current price $ 26.39
$ 26.39 - $ 26.39
Current price $ 26.39

Foster BL4704, 3/8" Industrial Coupler x 5/16" Hose ID, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL4704 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series —...

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Original price $ 32.99
Original price $ 32.99 - Original price $ 32.99
Original price $ 32.99
Current price $ 26.39
$ 26.39 - $ 26.39
Current price $ 26.39
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Original price $ 28.79
Original price $ 28.79 - Original price $ 28.79
Original price $ 28.79
Current price $ 22.99
$ 22.99 - $ 22.99
Current price $ 22.99

Foster 4704, 3/8" Industrial Coupler x 5/16" Hose ID, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4704 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

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Original price $ 28.79
Original price $ 28.79 - Original price $ 28.79
Original price $ 28.79
Current price $ 22.99
$ 22.99 - $ 22.99
Current price $ 22.99
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Original price $ 32.39
Original price $ 32.39 - Original price $ 32.39
Original price $ 32.39
Current price $ 25.99
$ 25.99 - $ 25.99
Current price $ 25.99

Foster 4604W, 3/8" Industrial Coupler x 1/4" Hose ID, 4 Series, Water, Brass/SS

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4604W is a Brass/SS 3/8" industrial coupler from the Foster 4 Series — a h...

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Original price $ 32.39
Original price $ 32.39 - Original price $ 32.39
Original price $ 32.39
Current price $ 25.99
$ 25.99 - $ 25.99
Current price $ 25.99
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Original price $ 32.59
Original price $ 32.59 - Original price $ 32.59
Original price $ 32.59
Current price $ 26.09
$ 26.09 - $ 26.09
Current price $ 26.09

Foster BL4604, 3/8" Industrial Coupler x 1/4" Hose ID, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL4604 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series —...

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Original price $ 32.59
Original price $ 32.59 - Original price $ 32.59
Original price $ 32.59
Current price $ 26.09
$ 26.09 - $ 26.09
Current price $ 26.09
Save 20% Save %
Original price $ 27.39
Original price $ 27.39 - Original price $ 27.39
Original price $ 27.39
Current price $ 21.89
$ 21.89 - $ 21.89
Current price $ 21.89

Foster 4604, 3/8" Industrial Coupler x 1/4" Hose ID, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4604 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

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Original price $ 27.39
Original price $ 27.39 - Original price $ 27.39
Original price $ 27.39
Current price $ 21.89
$ 21.89 - $ 21.89
Current price $ 21.89
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Original price $ 33.39
Original price $ 33.39 - Original price $ 33.39
Original price $ 33.39
Current price $ 26.79
$ 26.79 - $ 26.79
Current price $ 26.79

Foster 4504W, 3/8" Industrial Coupler x 1/2" Male NPT, 4 Series, Water, Brass/SS

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4504W is a Brass/SS 3/8" industrial coupler from the Foster 4 Series — a h...

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Original price $ 33.39
Original price $ 33.39 - Original price $ 33.39
Original price $ 33.39
Current price $ 26.79
$ 26.79 - $ 26.79
Current price $ 26.79
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