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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 19% Save %
$ 132.00
$ 132.00 - $ 132.00
$ 132.00
$ 107.00
$ 107.00 - $ 107.00
$ 107.00

Foster 51-4, 3/8" Industrial Plug x 1/4" Push-On Hose Stem, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 51-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 132.00
$ 132.00 - $ 132.00
$ 132.00
$ 107.00
$ 107.00 - $ 107.00
$ 107.00
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 19% Save %
$ 124.00
$ 124.00 - $ 124.00
$ 124.00
$ 100.00
$ 100.00 - $ 100.00
$ 100.00

Foster 49-4, 3/8" Industrial Plug x 1/2" Hose ID, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 49-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 124.00
$ 124.00 - $ 124.00
$ 124.00
$ 100.00
$ 100.00 - $ 100.00
$ 100.00
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 19% Save %
$ 176.00
$ 176.00 - $ 176.00
$ 176.00
$ 142.00
$ 142.00 - $ 142.00
$ 142.00

Foster 48-4B, 3/8" Industrial Plug x 3/8" Hose ID, 4 Series, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 48-4B is a Brass 3/8" industrial plug from the Foster 4 Series — a high-fl...

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$ 176.00
$ 176.00 - $ 176.00
$ 176.00
$ 142.00
$ 142.00 - $ 142.00
$ 142.00
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 21% Save %
$ 112.00
$ 112.00 - $ 112.00
$ 112.00
$ 89.00
$ 89.00 - $ 89.00
$ 89.00

Foster 48-4, 3/8" Industrial Plug x 3/8" Hose ID, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 48-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 112.00
$ 112.00 - $ 112.00
$ 112.00
$ 89.00
$ 89.00 - $ 89.00
$ 89.00
Save 21% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 21% Save %
$ 185.00
$ 185.00 - $ 185.00
$ 185.00
$ 147.00
$ 147.00 - $ 147.00
$ 147.00

Foster 47-4, 3/8" Industrial Plug x 5/16" Hose ID, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 47-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 185.00
$ 185.00 - $ 185.00
$ 185.00
$ 147.00
$ 147.00 - $ 147.00
$ 147.00
Save 21% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 21% Save %
$ 156.00
$ 156.00 - $ 156.00
$ 156.00
$ 124.00
$ 124.00 - $ 124.00
$ 124.00

Foster 46-4, 3/8" Industrial Plug x 1/4" Hose ID, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 46-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 156.00
$ 156.00 - $ 156.00
$ 156.00
$ 124.00
$ 124.00 - $ 124.00
$ 124.00
Save 21% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 305.00
$ 305.00 - $ 305.00
$ 305.00
$ 243.00
$ 243.00 - $ 243.00
$ 243.00

Foster 44S-4, 3/8" Industrial Plug x 1/2" Male NPT, 4 Series, Free Swivel, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 44S-4 is a Brass/Steel 3/8" industrial plug from the Foster 4 Series — a h...

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$ 305.00
$ 305.00 - $ 305.00
$ 305.00
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
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 %
$ 231.00
$ 231.00 - $ 231.00
$ 231.00
$ 185.00
$ 185.00 - $ 185.00
$ 185.00

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

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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$ 231.00
$ 231.00 - $ 231.00
$ 231.00
$ 185.00
$ 185.00 - $ 185.00
$ 185.00
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 %
$ 357.00
$ 357.00 - $ 357.00
$ 357.00
$ 286.00
$ 286.00 - $ 286.00
$ 286.00

Foster 40S-4, 3/8" Industrial Plug x 1/4" Male NPT, 4 Series, Free Swivel, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 40S-4 is a Brass/Steel 3/8" industrial plug from the Foster 4 Series — a h...

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$ 357.00
$ 357.00 - $ 357.00
$ 357.00
$ 286.00
$ 286.00 - $ 286.00
$ 286.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 19% Save %
$ 124.00
$ 124.00 - $ 124.00
$ 124.00
$ 100.00
$ 100.00 - $ 100.00
$ 100.00

Foster 44-4, 3/8" Industrial Plug x 1/2" Male NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 44-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 124.00
$ 124.00 - $ 124.00
$ 124.00
$ 100.00
$ 100.00 - $ 100.00
$ 100.00
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 257.00
$ 257.00 - $ 257.00
$ 257.00
$ 206.00
$ 206.00 - $ 206.00
$ 206.00

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

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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$ 257.00
$ 257.00 - $ 257.00
$ 257.00
$ 206.00
$ 206.00 - $ 206.00
$ 206.00
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 %
$ 160.00
$ 160.00 - $ 160.00
$ 160.00
$ 128.00
$ 128.00 - $ 128.00
$ 128.00

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

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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$ 160.00
$ 160.00 - $ 160.00
$ 160.00
$ 128.00
$ 128.00 - $ 128.00
$ 128.00
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 %
$ 89.00
$ 89.00 - $ 89.00
$ 89.00
$ 71.00
$ 71.00 - $ 71.00
$ 71.00

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

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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$ 89.00
$ 89.00 - $ 89.00
$ 89.00
$ 71.00
$ 71.00 - $ 71.00
$ 71.00
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 %
$ 187.00
$ 187.00 - $ 187.00
$ 187.00
$ 149.00
$ 149.00 - $ 149.00
$ 149.00

Foster 40-4S/S, 3/8" Industrial Plug x 1/4" Male NPT, 4 Series, 303 Stainless

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 40-4S/S is a 303 Stainless 3/8" industrial plug from the Foster 4 Series —...

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$ 187.00
$ 187.00 - $ 187.00
$ 187.00
$ 149.00
$ 149.00 - $ 149.00
$ 149.00
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 %
$ 163.00
$ 163.00 - $ 163.00
$ 163.00
$ 130.00
$ 130.00 - $ 130.00
$ 130.00

Foster 40-4B, 3/8" Industrial Plug x 1/4" Male NPT, 4 Series, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 40-4B is a Brass 3/8" industrial plug from the Foster 4 Series — a high-fl...

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$ 163.00
$ 163.00 - $ 163.00
$ 163.00
$ 130.00
$ 130.00 - $ 130.00
$ 130.00
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 %
$ 96.00
$ 96.00 - $ 96.00
$ 96.00
$ 77.00
$ 77.00 - $ 77.00
$ 77.00

Foster 40-4, 3/8" Industrial Plug x 1/4" Male NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 40-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 96.00
$ 96.00 - $ 96.00
$ 96.00
$ 77.00
$ 77.00 - $ 77.00
$ 77.00
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 %
$ 202.00
$ 202.00 - $ 202.00
$ 202.00
$ 162.00
$ 162.00 - $ 162.00
$ 162.00

Foster 38-4, 3/8" Industrial Plug x 1/8" Male NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 38-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 202.00
$ 202.00 - $ 202.00
$ 202.00
$ 162.00
$ 162.00 - $ 162.00
$ 162.00
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 %
$ 165.00
$ 165.00 - $ 165.00
$ 165.00
$ 132.00
$ 132.00 - $ 132.00
$ 132.00

Foster 45-4, 3/8" Industrial Plug x 1/2" Female NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 45-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 165.00
$ 165.00 - $ 165.00
$ 165.00
$ 132.00
$ 132.00 - $ 132.00
$ 132.00
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 %
$ 344.00
$ 344.00 - $ 344.00
$ 344.00
$ 275.00
$ 275.00 - $ 275.00
$ 275.00

Foster 43-4S/S, 3/8" Industrial Plug x 3/8" Female NPT, 4 Series, 303 Stainless

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 43-4S/S is a 303 Stainless 3/8" industrial plug from the Foster 4 Series —...

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$ 344.00
$ 344.00 - $ 344.00
$ 344.00
$ 275.00
$ 275.00 - $ 275.00
$ 275.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 19% Save %
$ 119.00
$ 119.00 - $ 119.00
$ 119.00
$ 96.00
$ 96.00 - $ 96.00
$ 96.00

Foster 43-4, 3/8" Industrial Plug x 3/8" Female NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 43-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 119.00
$ 119.00 - $ 119.00
$ 119.00
$ 96.00
$ 96.00 - $ 96.00
$ 96.00
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 96.00
$ 96.00 - $ 96.00
$ 96.00
$ 77.00
$ 77.00 - $ 77.00
$ 77.00

Foster 41-4, 3/8" Industrial Plug x 1/4" Female NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 41-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

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$ 96.00
$ 96.00 - $ 96.00
$ 96.00
$ 77.00
$ 77.00 - $ 77.00
$ 77.00
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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$ 784.00
$ 784.00 - $ 784.00
$ 784.00
$ 628.00
$ 628.00 - $ 628.00
$ 628.00

Foster SLSD13-4, 3/8" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 4 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster SLSD13-4 is a Brass 3/8" industrial coupler from the Foster 4 Series — a h...

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$ 784.00
$ 784.00 - $ 784.00
$ 784.00
$ 628.00
$ 628.00 - $ 628.00
$ 628.00
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 %
$ 687.00
$ 687.00 - $ 687.00
$ 687.00
$ 550.00
$ 550.00 - $ 550.00
$ 550.00

Foster FMSD13-4, 3/8" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 4 Series, Automatic, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster FMSD13-4 is a Brass 3/8" industrial coupler from the Foster 4 Series — a h...

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$ 687.00
$ 687.00 - $ 687.00
$ 687.00
$ 550.00
$ 550.00 - $ 550.00
$ 550.00
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 %
$ 777.00
$ 777.00 - $ 777.00
$ 777.00
$ 623.00
$ 623.00 - $ 623.00
$ 623.00

Foster SLSD11-4, 3/8" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 3/4" OD, 4 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster SLSD11-4 is a Brass 3/8" industrial coupler from the Foster 4 Series — a h...

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$ 777.00
$ 777.00 - $ 777.00
$ 777.00
$ 623.00
$ 623.00 - $ 623.00
$ 623.00
Save 20% Save %

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