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Hydraulic Quick Couplers

Hydraulic quick couplers join high-pressure fluid lines with a secure, leak-free connection. This collection covers ISO-B, ISO-A, flush face, and specialty hydraulic couplers and plugs in steel, brass, and stainless. Filter by series, body size, thread, and material to match your hydraulic system.

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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 %
$ 122.49
$ 122.49 - $ 122.49
$ 122.49
$ 97.99
$ 97.99 - $ 97.99
$ 97.99

Foster 75FSS-103, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, EPDM Seal, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FSS-103 is a 303 stainless 3/4" straigh...

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$ 122.49
$ 122.49 - $ 122.49
$ 122.49
$ 97.99
$ 97.99 - $ 97.99
$ 97.99
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 %
$ 120.69
$ 120.69 - $ 120.69
$ 120.69
$ 96.49
$ 96.49 - $ 96.49
$ 96.49

Foster 75FSS-101, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Viton Seal, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FSS-101 is a 303 stainless 3/4" straigh...

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$ 120.69
$ 120.69 - $ 120.69
$ 120.69
$ 96.49
$ 96.49 - $ 96.49
$ 96.49
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 %
$ 116.99
$ 116.99 - $ 116.99
$ 116.99
$ 93.59
$ 93.59 - $ 93.59
$ 93.59

Foster 75FSS, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FSS is a 303 stainless 3/4" straight-th...

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$ 116.99
$ 116.99 - $ 116.99
$ 116.99
$ 93.59
$ 93.59 - $ 93.59
$ 93.59
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 %
$ 41.29
$ 41.29 - $ 41.29
$ 41.29
$ 33.09
$ 33.09 - $ 33.09
$ 33.09

Foster 75FS-104, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Silicone Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FS-104 is a brass 3/4" straight-thru co...

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$ 41.29
$ 41.29 - $ 41.29
$ 41.29
$ 33.09
$ 33.09 - $ 33.09
$ 33.09
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 %
$ 39.69
$ 39.69 - $ 39.69
$ 39.69
$ 31.79
$ 31.79 - $ 31.79
$ 31.79

Foster 75FS-103, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, EPDM Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FS-103 is a brass 3/4" straight-thru co...

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$ 39.69
$ 39.69 - $ 39.69
$ 39.69
$ 31.79
$ 31.79 - $ 31.79
$ 31.79
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 %
$ 40.39
$ 40.39 - $ 40.39
$ 40.39
$ 32.29
$ 32.29 - $ 32.29
$ 32.29

Foster 75FS-101, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Viton Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FS-101 is a brass 3/4" straight-thru co...

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$ 40.39
$ 40.39 - $ 40.39
$ 40.39
$ 32.29
$ 32.29 - $ 32.29
$ 32.29
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 %
$ 35.59
$ 35.59 - $ 35.59
$ 35.59
$ 28.49
$ 28.49 - $ 28.49
$ 28.49

Foster 75FS, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FS is a brass 3/4" straight-thru couple...

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$ 35.59
$ 35.59 - $ 35.59
$ 35.59
$ 28.49
$ 28.49 - $ 28.49
$ 28.49
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 %
$ 49.19
$ 49.19 - $ 49.19
$ 49.19
$ 39.29
$ 39.29 - $ 39.29
$ 39.29

Foster 75FPS, 3/4" Straight-Thru Plug x 3/4" Female NPT, FST Series, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FPS is a 303 stainless 3/4" straight-th...

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$ 49.19
$ 49.19 - $ 49.19
$ 49.19
$ 39.29
$ 39.29 - $ 39.29
$ 39.29
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 %
$ 15.29
$ 15.29 - $ 15.29
$ 15.29
$ 12.29
$ 12.29 - $ 12.29
$ 12.29

Foster 75FPB, 3/4" Straight-Thru Plug x 3/4" Female NPT, FST Series, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FPB is a brass 3/4" straight-thru plug ...

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$ 15.29
$ 15.29 - $ 15.29
$ 15.29
$ 12.29
$ 12.29 - $ 12.29
$ 12.29
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 %
$ 12.29
$ 12.29 - $ 12.29
$ 12.29
$ 9.79
$ 9.79 - $ 9.79
$ 9.79

Foster 75FP, 3/4" Straight-Thru Plug x 3/4" Female NPT, FST Series, Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FP is a steel 3/4" straight-thru plug i...

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$ 12.29
$ 12.29 - $ 12.29
$ 12.29
$ 9.79
$ 9.79 - $ 9.79
$ 9.79
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 %
$ 82.19
$ 82.19 - $ 82.19
$ 82.19
$ 65.79
$ 65.79 - $ 65.79
$ 65.79

Foster 50FSS-103, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, EPDM Seal, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FSS-103 is a 303 stainless 1/2" straigh...

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$ 82.19
$ 82.19 - $ 82.19
$ 82.19
$ 65.79
$ 65.79 - $ 65.79
$ 65.79
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 %
$ 80.79
$ 80.79 - $ 80.79
$ 80.79
$ 64.69
$ 64.69 - $ 64.69
$ 64.69

Foster 50FSS-101, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, Viton Seal, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FSS-101 is a 303 stainless 1/2" straigh...

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$ 80.79
$ 80.79 - $ 80.79
$ 80.79
$ 64.69
$ 64.69 - $ 64.69
$ 64.69
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 %
$ 77.99
$ 77.99 - $ 77.99
$ 77.99
$ 62.39
$ 62.39 - $ 62.39
$ 62.39

Foster 50FSS, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FSS is a 303 stainless 1/2" straight-th...

View full details
$ 77.99
$ 77.99 - $ 77.99
$ 77.99
$ 62.39
$ 62.39 - $ 62.39
$ 62.39
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 %
$ 24.79
$ 24.79 - $ 24.79
$ 24.79
$ 19.89
$ 19.89 - $ 19.89
$ 19.89

Foster 50FS-103, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, EPDM Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FS-103 is a brass 1/2" straight-thru co...

View full details
$ 24.79
$ 24.79 - $ 24.79
$ 24.79
$ 19.89
$ 19.89 - $ 19.89
$ 19.89
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 %
$ 25.19
$ 25.19 - $ 25.19
$ 25.19
$ 20.19
$ 20.19 - $ 20.19
$ 20.19

Foster 50FS-101, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, Viton Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FS-101 is a brass 1/2" straight-thru co...

View full details
$ 25.19
$ 25.19 - $ 25.19
$ 25.19
$ 20.19
$ 20.19 - $ 20.19
$ 20.19
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 %
$ 22.19
$ 22.19 - $ 22.19
$ 22.19
$ 17.79
$ 17.79 - $ 17.79
$ 17.79

Foster 50FS, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FS is a brass 1/2" straight-thru couple...

View full details
$ 22.19
$ 22.19 - $ 22.19
$ 22.19
$ 17.79
$ 17.79 - $ 17.79
$ 17.79
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 %
$ 35.29
$ 35.29 - $ 35.29
$ 35.29
$ 28.19
$ 28.19 - $ 28.19
$ 28.19

Foster 50FPS, 1/2" Straight-Thru Plug x 1/2" Female NPT, FST Series, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FPS is a 303 stainless 1/2" straight-th...

View full details
$ 35.29
$ 35.29 - $ 35.29
$ 35.29
$ 28.19
$ 28.19 - $ 28.19
$ 28.19
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 %
$ 8.29
$ 8.29 - $ 8.29
$ 8.29
$ 6.59
$ 6.59 - $ 6.59
$ 6.59

Foster 50FPB, 1/2" Straight-Thru Plug x 1/2" Female NPT, FST Series, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FPB is a brass 1/2" straight-thru plug ...

View full details
$ 8.29
$ 8.29 - $ 8.29
$ 8.29
$ 6.59
$ 6.59 - $ 6.59
$ 6.59
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 %
$ 8.89
$ 8.89 - $ 8.89
$ 8.89
$ 7.09
$ 7.09 - $ 7.09
$ 7.09

Foster 50FP, 1/2" Straight-Thru Plug x 1/2" Female NPT, FST Series, Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FP is a steel 1/2" straight-thru plug i...

View full details
$ 8.89
$ 8.89 - $ 8.89
$ 8.89
$ 7.09
$ 7.09 - $ 7.09
$ 7.09
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 %
$ 8.79
$ 8.79 - $ 8.79
$ 8.79
$ 7.09
$ 7.09 - $ 7.09
$ 7.09

Foster 38HPB, 3/8" Straight-Thru Plug x 3/8" Hose ID, FST Series, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 38HPB is a brass 3/8" straight-thru plug ...

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$ 8.79
$ 8.79 - $ 8.79
$ 8.79
$ 7.09
$ 7.09 - $ 7.09
$ 7.09
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 %
$ 70.89
$ 70.89 - $ 70.89
$ 70.89
$ 56.69
$ 56.69 - $ 56.69
$ 56.69

Foster 38FSS-103, 3/8" Straight-Thru Coupler x 3/8" Female NPT, FST Series, EPDM Seal, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 38FSS-103 is a 303 stainless 3/8" straigh...

View full details
$ 70.89
$ 70.89 - $ 70.89
$ 70.89
$ 56.69
$ 56.69 - $ 56.69
$ 56.69
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 %
$ 71.29
$ 71.29 - $ 71.29
$ 71.29
$ 56.99
$ 56.99 - $ 56.99
$ 56.99

Foster 38FSS-101, 3/8" Straight-Thru Coupler x 3/8" Female NPT, FST Series, Viton Seal, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 38FSS-101 is a 303 stainless 3/8" straigh...

View full details
$ 71.29
$ 71.29 - $ 71.29
$ 71.29
$ 56.99
$ 56.99 - $ 56.99
$ 56.99
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 %
$ 70.79
$ 70.79 - $ 70.79
$ 70.79
$ 56.59
$ 56.59 - $ 56.59
$ 56.59

Foster 38FSS, 3/8" Straight-Thru Coupler x 3/8" Female NPT, FST Series, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 38FSS is a 303 stainless 3/8" straight-th...

View full details
$ 70.79
$ 70.79 - $ 70.79
$ 70.79
$ 56.59
$ 56.59 - $ 56.59
$ 56.59
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 %
$ 18.39
$ 18.39 - $ 18.39
$ 18.39
$ 14.69
$ 14.69 - $ 14.69
$ 14.69

Foster 38FS-103, 3/8" Straight-Thru Coupler x 3/8" Female NPT, FST Series, EPDM Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 38FS-103 is a brass 3/8" straight-thru co...

View full details
$ 18.39
$ 18.39 - $ 18.39
$ 18.39
$ 14.69
$ 14.69 - $ 14.69
$ 14.69
Save 20% Save %

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