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Best Sellers

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 %
$ 187.00
$ 187.00 - $ 187.00
$ 187.00
$ 151.00
$ 151.00 - $ 151.00
$ 151.00

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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$ 187.00
$ 187.00 - $ 187.00
$ 187.00
$ 151.00
$ 151.00 - $ 151.00
$ 151.00
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 %
$ 119.00
$ 119.00 - $ 119.00
$ 119.00
$ 95.00
$ 95.00 - $ 95.00
$ 95.00

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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$ 119.00
$ 119.00 - $ 119.00
$ 119.00
$ 95.00
$ 95.00 - $ 95.00
$ 95.00
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 %
$ 196.00
$ 196.00 - $ 196.00
$ 196.00
$ 157.00
$ 157.00 - $ 157.00
$ 157.00

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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$ 196.00
$ 196.00 - $ 196.00
$ 196.00
$ 157.00
$ 157.00 - $ 157.00
$ 157.00
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 %
$ 166.00
$ 166.00 - $ 166.00
$ 166.00
$ 132.00
$ 132.00 - $ 132.00
$ 132.00

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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$ 166.00
$ 166.00 - $ 166.00
$ 166.00
$ 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 %
$ 324.00
$ 324.00 - $ 324.00
$ 324.00
$ 258.00
$ 258.00 - $ 258.00
$ 258.00

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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$ 324.00
$ 324.00 - $ 324.00
$ 324.00
$ 258.00
$ 258.00 - $ 258.00
$ 258.00
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 %
$ 245.00
$ 245.00 - $ 245.00
$ 245.00
$ 196.00
$ 196.00 - $ 196.00
$ 196.00

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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$ 245.00
$ 245.00 - $ 245.00
$ 245.00
$ 196.00
$ 196.00 - $ 196.00
$ 196.00
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 %
$ 379.00
$ 379.00 - $ 379.00
$ 379.00
$ 304.00
$ 304.00 - $ 304.00
$ 304.00

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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$ 379.00
$ 379.00 - $ 379.00
$ 379.00
$ 304.00
$ 304.00 - $ 304.00
$ 304.00
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 %
$ 132.00
$ 132.00 - $ 132.00
$ 132.00
$ 106.00
$ 106.00 - $ 106.00
$ 106.00

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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$ 132.00
$ 132.00 - $ 132.00
$ 132.00
$ 106.00
$ 106.00 - $ 106.00
$ 106.00
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 %
$ 274.00
$ 274.00 - $ 274.00
$ 274.00
$ 219.00
$ 219.00 - $ 219.00
$ 219.00

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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$ 274.00
$ 274.00 - $ 274.00
$ 274.00
$ 219.00
$ 219.00 - $ 219.00
$ 219.00
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 %
$ 170.00
$ 170.00 - $ 170.00
$ 170.00
$ 136.00
$ 136.00 - $ 136.00
$ 136.00

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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$ 170.00
$ 170.00 - $ 170.00
$ 170.00
$ 136.00
$ 136.00 - $ 136.00
$ 136.00
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 %
$ 198.00
$ 198.00 - $ 198.00
$ 198.00
$ 159.00
$ 159.00 - $ 159.00
$ 159.00

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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$ 198.00
$ 198.00 - $ 198.00
$ 198.00
$ 159.00
$ 159.00 - $ 159.00
$ 159.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 21% Save %
$ 174.00
$ 174.00 - $ 174.00
$ 174.00
$ 138.00
$ 138.00 - $ 138.00
$ 138.00

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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$ 174.00
$ 174.00 - $ 174.00
$ 174.00
$ 138.00
$ 138.00 - $ 138.00
$ 138.00
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 %
$ 102.00
$ 102.00 - $ 102.00
$ 102.00
$ 81.00
$ 81.00 - $ 81.00
$ 81.00

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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$ 102.00
$ 102.00 - $ 102.00
$ 102.00
$ 81.00
$ 81.00 - $ 81.00
$ 81.00
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 %
$ 215.00
$ 215.00 - $ 215.00
$ 215.00
$ 172.00
$ 172.00 - $ 172.00
$ 172.00

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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$ 215.00
$ 215.00 - $ 215.00
$ 215.00
$ 172.00
$ 172.00 - $ 172.00
$ 172.00
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 %
$ 176.00
$ 176.00 - $ 176.00
$ 176.00
$ 140.00
$ 140.00 - $ 140.00
$ 140.00

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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$ 176.00
$ 176.00 - $ 176.00
$ 176.00
$ 140.00
$ 140.00 - $ 140.00
$ 140.00
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 %
$ 366.00
$ 366.00 - $ 366.00
$ 366.00
$ 292.00
$ 292.00 - $ 292.00
$ 292.00

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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$ 366.00
$ 366.00 - $ 366.00
$ 366.00
$ 292.00
$ 292.00 - $ 292.00
$ 292.00
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 %
$ 127.00
$ 127.00 - $ 127.00
$ 127.00
$ 102.00
$ 102.00 - $ 102.00
$ 102.00

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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$ 127.00
$ 127.00 - $ 127.00
$ 127.00
$ 102.00
$ 102.00 - $ 102.00
$ 102.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 21% Save %
$ 102.00
$ 102.00 - $ 102.00
$ 102.00
$ 81.00
$ 81.00 - $ 81.00
$ 81.00

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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$ 102.00
$ 102.00 - $ 102.00
$ 102.00
$ 81.00
$ 81.00 - $ 81.00
$ 81.00
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 %
$ 833.00
$ 833.00 - $ 833.00
$ 833.00
$ 667.00
$ 667.00 - $ 667.00
$ 667.00

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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$ 833.00
$ 833.00 - $ 833.00
$ 833.00
$ 667.00
$ 667.00 - $ 667.00
$ 667.00
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 %
$ 730.00
$ 730.00 - $ 730.00
$ 730.00
$ 584.00
$ 584.00 - $ 584.00
$ 584.00

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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$ 730.00
$ 730.00 - $ 730.00
$ 730.00
$ 584.00
$ 584.00 - $ 584.00
$ 584.00
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 %
$ 826.00
$ 826.00 - $ 826.00
$ 826.00
$ 662.00
$ 662.00 - $ 662.00
$ 662.00

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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$ 826.00
$ 826.00 - $ 826.00
$ 826.00
$ 662.00
$ 662.00 - $ 662.00
$ 662.00
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 %
$ 718.00
$ 718.00 - $ 718.00
$ 718.00
$ 575.00
$ 575.00 - $ 575.00
$ 575.00

Foster FMSD11-4, 3/8" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 3/4" OD, 4 Series, Automatic, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster FMSD11-4 is a Brass 3/8" industrial coupler from the Foster 4 Series — a h...

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$ 718.00
$ 718.00 - $ 718.00
$ 718.00
$ 575.00
$ 575.00 - $ 575.00
$ 575.00
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 %
$ 814.00
$ 814.00 - $ 814.00
$ 814.00
$ 650.00
$ 650.00 - $ 650.00
$ 650.00

Foster SLSD9-4, 3/8" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 4 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster SLSD9-4 is a Brass 3/8" industrial coupler from the Foster 4 Series — a hi...

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$ 814.00
$ 814.00 - $ 814.00
$ 814.00
$ 650.00
$ 650.00 - $ 650.00
$ 650.00
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 %
$ 707.00
$ 707.00 - $ 707.00
$ 707.00
$ 566.00
$ 566.00 - $ 566.00
$ 566.00

Foster FMSD9-4, 3/8" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 4 Series, Automatic, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster FMSD9-4 is a Brass 3/8" industrial coupler from the Foster 4 Series — a hi...

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$ 707.00
$ 707.00 - $ 707.00
$ 707.00
$ 566.00
$ 566.00 - $ 566.00
$ 566.00
Save 20% Save %

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