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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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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 585.00
$ 585.00 - $ 585.00
$ 585.00
$ 468.00
$ 468.00 - $ 468.00
$ 468.00

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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$ 585.00
$ 585.00 - $ 585.00
$ 585.00
$ 468.00
$ 468.00 - $ 468.00
$ 468.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 511.00
$ 511.00 - $ 511.00
$ 511.00
$ 408.00
$ 408.00 - $ 408.00
$ 408.00

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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$ 511.00
$ 511.00 - $ 511.00
$ 511.00
$ 408.00
$ 408.00 - $ 408.00
$ 408.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 575.00
$ 575.00 - $ 575.00
$ 575.00
$ 461.00
$ 461.00 - $ 461.00
$ 461.00

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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$ 575.00
$ 575.00 - $ 575.00
$ 575.00
$ 461.00
$ 461.00 - $ 461.00
$ 461.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 578.00
$ 578.00 - $ 578.00
$ 578.00
$ 463.00
$ 463.00 - $ 463.00
$ 463.00

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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$ 578.00
$ 578.00 - $ 578.00
$ 578.00
$ 463.00
$ 463.00 - $ 463.00
$ 463.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 486.00
$ 486.00 - $ 486.00
$ 486.00
$ 389.00
$ 389.00 - $ 389.00
$ 389.00

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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$ 486.00
$ 486.00 - $ 486.00
$ 486.00
$ 389.00
$ 389.00 - $ 389.00
$ 389.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 593.00
$ 593.00 - $ 593.00
$ 593.00
$ 476.00
$ 476.00 - $ 476.00
$ 476.00

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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$ 593.00
$ 593.00 - $ 593.00
$ 593.00
$ 476.00
$ 476.00 - $ 476.00
$ 476.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 585.00
$ 585.00 - $ 585.00
$ 585.00
$ 468.00
$ 468.00 - $ 468.00
$ 468.00

Foster 4504S, 3/8" Industrial Coupler x 1/2" Male NPT, 4 Series, Steam/EPDM, Brass body, Brass sleeve, SS valve

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4504S is a Brass body, Brass sleeve, SS valve 3/8" industrial coupler from...

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$ 585.00
$ 585.00 - $ 585.00
$ 585.00
$ 468.00
$ 468.00 - $ 468.00
$ 468.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 585.00
$ 585.00 - $ 585.00
$ 585.00
$ 468.00
$ 468.00 - $ 468.00
$ 468.00

Foster 4504H, 3/8" Industrial Coupler x 1/2" Male NPT, 4 Series, Heat/Viton, Brass/Steel

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

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$ 585.00
$ 585.00 - $ 585.00
$ 585.00
$ 468.00
$ 468.00 - $ 468.00
$ 468.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 589.00
$ 589.00 - $ 589.00
$ 589.00
$ 472.00
$ 472.00 - $ 472.00
$ 472.00

Foster BL4504, 3/8" Industrial Coupler x 1/2" Male NPT, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL4504 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series —...

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$ 589.00
$ 589.00 - $ 589.00
$ 589.00
$ 472.00
$ 472.00 - $ 472.00
$ 472.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 497.00
$ 497.00 - $ 497.00
$ 497.00
$ 398.00
$ 398.00 - $ 398.00
$ 398.00

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

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

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$ 497.00
$ 497.00 - $ 497.00
$ 497.00
$ 398.00
$ 398.00 - $ 398.00
$ 398.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 523.00
$ 523.00 - $ 523.00
$ 523.00
$ 419.00
$ 419.00 - $ 419.00
$ 419.00

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

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...

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$ 523.00
$ 523.00 - $ 523.00
$ 523.00
$ 419.00
$ 419.00 - $ 419.00
$ 419.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 892.00
$ 892.00 - $ 892.00
$ 892.00
$ 713.00
$ 713.00 - $ 713.00
$ 713.00

Foster BL4304S/S, 3/8" Industrial Coupler x 3/8" Male NPT, 4 Series, Ball Lock, 303 Stainless

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL4304S/S is a 303 Stainless 3/8" industrial coupler from the Foster 4 Ser...

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$ 892.00
$ 892.00 - $ 892.00
$ 892.00
$ 713.00
$ 713.00 - $ 713.00
$ 713.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 876.00
$ 876.00 - $ 876.00
$ 876.00
$ 701.00
$ 701.00 - $ 701.00
$ 701.00

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

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...

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$ 876.00
$ 876.00 - $ 876.00
$ 876.00
$ 701.00
$ 701.00 - $ 701.00
$ 701.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 536.00
$ 536.00 - $ 536.00
$ 536.00
$ 428.00
$ 428.00 - $ 428.00
$ 428.00

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

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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$ 536.00
$ 536.00 - $ 536.00
$ 536.00
$ 428.00
$ 428.00 - $ 428.00
$ 428.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 520.00
$ 520.00 - $ 520.00
$ 520.00
$ 417.00
$ 417.00 - $ 417.00
$ 417.00

Foster BL4304, 3/8" Industrial Coupler x 3/8" Male NPT, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL4304 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series —...

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$ 520.00
$ 520.00 - $ 520.00
$ 520.00
$ 417.00
$ 417.00 - $ 417.00
$ 417.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 447.00
$ 447.00 - $ 447.00
$ 447.00
$ 357.00
$ 357.00 - $ 357.00
$ 357.00

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

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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$ 447.00
$ 447.00 - $ 447.00
$ 447.00
$ 357.00
$ 357.00 - $ 357.00
$ 357.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 502.00
$ 502.00 - $ 502.00
$ 502.00
$ 403.00
$ 403.00 - $ 403.00
$ 403.00

Foster 4104W, 3/8" Industrial Coupler x 1/4" Male NPT, 4 Series, Water, Brass/SS

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4104W is a Brass/SS 3/8" industrial coupler from the Foster 4 Series — a h...

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$ 502.00
$ 502.00 - $ 502.00
$ 502.00
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 516.00
$ 516.00 - $ 516.00
$ 516.00
$ 413.00
$ 413.00 - $ 413.00
$ 413.00

Foster 4104S, 3/8" Industrial Coupler x 1/4" Male NPT, 4 Series, Steam/EPDM, Brass body, Brass sleeve, SS valve

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4104S is a Brass body, Brass sleeve, SS valve 3/8" industrial coupler from...

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$ 516.00
$ 516.00 - $ 516.00
$ 516.00
$ 413.00
$ 413.00 - $ 413.00
$ 413.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 495.00
$ 495.00 - $ 495.00
$ 495.00
$ 396.00
$ 396.00 - $ 396.00
$ 396.00

Foster 4104H, 3/8" Industrial Coupler x 1/4" Male NPT, 4 Series, Heat/Viton, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4104H is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — ...

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$ 495.00
$ 495.00 - $ 495.00
$ 495.00
$ 396.00
$ 396.00 - $ 396.00
$ 396.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 499.00
$ 499.00 - $ 499.00
$ 499.00
$ 399.00
$ 399.00 - $ 399.00
$ 399.00

Foster BL4104, 3/8" Industrial Coupler x 1/4" Male NPT, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL4104 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series —...

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$ 499.00
$ 499.00 - $ 499.00
$ 499.00
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 428.00
$ 428.00 - $ 428.00
$ 428.00
$ 343.00
$ 343.00 - $ 343.00
$ 343.00

Foster 4104, 3/8" Industrial Coupler x 1/4" Male NPT, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4104 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

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$ 428.00
$ 428.00 - $ 428.00
$ 428.00
$ 343.00
$ 343.00 - $ 343.00
$ 343.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 589.00
$ 589.00 - $ 589.00
$ 589.00
$ 472.00
$ 472.00 - $ 472.00
$ 472.00

Foster BL4404, 3/8" Industrial Coupler x 1/2" Female NPT, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster BL4404 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series —...

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$ 589.00
$ 589.00 - $ 589.00
$ 589.00
$ 472.00
$ 472.00 - $ 472.00
$ 472.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 497.00
$ 497.00 - $ 497.00
$ 497.00
$ 398.00
$ 398.00 - $ 398.00
$ 398.00

Foster 4404, 3/8" Industrial Coupler x 1/2" Female NPT, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4404 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

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$ 497.00
$ 497.00 - $ 497.00
$ 497.00
$ 398.00
$ 398.00 - $ 398.00
$ 398.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 523.00
$ 523.00 - $ 523.00
$ 523.00
$ 419.00
$ 419.00 - $ 419.00
$ 419.00

Foster 4204W, 3/8" Industrial Coupler x 3/8" Female NPT, 4 Series, Water, Brass/SS

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4204W is a Brass/SS 3/8" industrial coupler from the Foster 4 Series — a h...

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$ 523.00
$ 523.00 - $ 523.00
$ 523.00
$ 419.00
$ 419.00 - $ 419.00
$ 419.00
Save 20% Save %

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