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Foster

Foster quick couplers set the standard in pneumatic and hydraulic connections. Part of the ZSI-Foster line, Foster couplers and plugs cover the full range of industrial interchanges and body sizes in steel, brass, and stainless construction. Built for reliable, repeatable connections in air and fluid systems. Shop the full Foster range below.

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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 %
$ 18.59
$ 18.59 - $ 18.59
$ 18.59
$ 14.89
$ 14.89 - $ 14.89
$ 14.89

Foster BL2302, 1/8" 2 Series Coupler x 1/8" Female NPT, Heavy-Duty Brass, Steel (Ball Lock)

Dependable, leak-free connections for air and light fluid lines. The Foster BL2302 is a Heavy-Duty Brass, Steel 1/8" coupler from the proven Foster...

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$ 18.59
$ 18.59 - $ 18.59
$ 18.59
$ 14.89
$ 14.89 - $ 14.89
$ 14.89
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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 %
$ 3.19
$ 3.19 - $ 3.19
$ 3.19
$ 2.59
$ 2.59 - $ 2.59
$ 2.59

Foster 02-2, 1/8" 2 Series Plug x 1/8" Hose ID, Steel

Dependable, leak-free connections for air and light fluid lines. The Foster 02-2 is a Steel 1/8" plug from the proven Foster 2 Series — a miniature...

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$ 3.19
$ 3.19 - $ 3.19
$ 3.19
$ 2.59
$ 2.59 - $ 2.59
$ 2.59
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$ 35.59
$ 35.59 - $ 35.59
$ 35.59
$ 28.39
$ 28.39 - $ 28.39
$ 28.39

Foster 310-1814, Aro 310 Series, Coupler, Automatic, 1/2" Push-On Hose Barb, Brass, Steel

Series: 310 Part number: 310-1814 Interchange: Aro 310 Body: 3/8" Coupler, Automatic Thread: 1/2" Push-On Hose Barb Material: Heavy-Duty Bra...

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$ 35.59
$ 35.59 - $ 35.59
$ 35.59
$ 28.39
$ 28.39 - $ 28.39
$ 28.39
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$ 34.89
$ 34.89 - $ 34.89
$ 34.89
$ 27.89
$ 27.89 - $ 27.89
$ 27.89

Foster 210-1714, Aro 310 Series, Coupler, Automatic, 3/8" Push-On Hose Barb, Brass, Steel

Series: 310 Part number: 310-1714 Interchange: Aro 310 Body: 3/8" Coupler, Automatic Thread: 3/8" Push-On Hose Barb Material: Heavy-Duty Bra...

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$ 34.89
$ 34.89 - $ 34.89
$ 34.89
$ 27.89
$ 27.89 - $ 27.89
$ 27.89
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$ 33.39
$ 33.39 - $ 33.39
$ 33.39
$ 26.69
$ 26.69 - $ 26.69
$ 26.69

Foster 310-4904, Aro 310 Series, Coupler, Automatic, 1/2" Hose Barb, Brass, Steel

Series: 310 Part number: 310-4904 Interchange: Aro 310 Body: 3/8" Coupler, Automatic Thread: 1/2" Hose Barb Material: Heavy-Duty Brass, Stee...

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$ 33.39
$ 33.39 - $ 33.39
$ 33.39
$ 26.69
$ 26.69 - $ 26.69
$ 26.69
Save 20% Save %
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$ 33.69
$ 33.69 - $ 33.69
$ 33.69
$ 26.99
$ 26.99 - $ 26.99
$ 26.99

Foster 310-4704, Aro 310 Series, Coupler, Automatic, 5/16" Hose Barb, Brass, Steel

Series: 310 Part number: 310-4704 Interchange: Aro 310 Body: 3/8" Coupler, Automatic Thread: 5/16" Hose Barb Material: Heavy-Duty Brass, Ste...

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$ 33.69
$ 33.69 - $ 33.69
$ 33.69
$ 26.99
$ 26.99 - $ 26.99
$ 26.99
Save 20% Save %
Save 20% Save %
$ 32.89
$ 32.89 - $ 32.89
$ 32.89
$ 26.29
$ 26.29 - $ 26.29
$ 26.29

Foster 310-4604, Aro 310 Series, Coupler, Automatic, 1/4" Hose Barb, Brass, Steel

Series: 310 Part number: 310-4604 Interchange: Aro 310 Body: 3/8" Coupler, Automatic Thread: 1/4" Hose Barb Material: Heavy-Duty Brass, Stee...

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$ 32.89
$ 32.89 - $ 32.89
$ 32.89
$ 26.29
$ 26.29 - $ 26.29
$ 26.29
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$ 29.39
$ 29.39 - $ 29.39
$ 29.39
$ 23.49
$ 23.49 - $ 23.49
$ 23.49

Foster 310-4104, Aro 210 Series, Coupler, Automatic, 1/4" Male NPT, Brass, Steel

Series: 310 Part number: 310-4104 Interchange: Aro 410 Body: 3/8" Coupler, Automatic Thread: 1/4" Male NPT, MPT Material: Heavy-Duty Brass, ...

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$ 29.39
$ 29.39 - $ 29.39
$ 29.39
$ 23.49
$ 23.49 - $ 23.49
$ 23.49
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$ 24.99
$ 24.99 - $ 24.99
$ 24.99
$ 19.99
$ 19.99 - $ 19.99
$ 19.99

Foster K2S/S, FHK Series, ISO B, 1/4" Two Way Shut-off, Plug, Stainless Steel

Series: FHK Part Number: K2S/S Interchange: ISO B 7241-1 Plug Body: 1/4" Valved Thread: 1/4" Female NPT, FPT Material: Stainless Steel Quantity: 1

$ 24.99
$ 24.99 - $ 24.99
$ 24.99
$ 19.99
$ 19.99 - $ 19.99
$ 19.99
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$ 11.29
$ 11.29 - $ 11.29
$ 11.29
$ 9.09
$ 9.09 - $ 9.09
$ 9.09

Foster K2S, FHK Series, ISO B, 1/4" Two Way Shut-off, Plug, Steel

Series: FHK Part Number: K2S Interchange: ISO B 7241-1 Plug Body: 1/4" Valved Thread: 1/4" Female NPT, FPT Material: Solid Steel Quantity: 1

$ 11.29
$ 11.29 - $ 11.29
$ 11.29
$ 9.09
$ 9.09 - $ 9.09
$ 9.09
Save 19% Save %
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$ 186.99
$ 186.99 - $ 186.99
$ 186.99
$ 149.59
$ 149.59 - $ 149.59
$ 149.59

Foster K8S/S, FHK Series, ISO B, 1" Two Way Shut-off, Plug, Stainless Steel

Series: FHK Part Number: K8S Interchange: ISO B 7241-1 Plug Body: 1" Valved Thread: 1" Female NPT, FPT Material: Stainless Steel Quantity: 1

$ 186.99
$ 186.99 - $ 186.99
$ 186.99
$ 149.59
$ 149.59 - $ 149.59
$ 149.59
Save 20% Save %
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$ 49.49
$ 49.49 - $ 49.49
$ 49.49
$ 39.59
$ 39.59 - $ 39.59
$ 39.59

Foster K8S, FHK Series, ISO B, 1" Two Way Shut-off, Plug, Steel

Series: FHK Part Number: K8S Interchange: ISO B 7241-1 Plug Body: 1" Valved Thread: 1" Female NPT, FPT Material: Solid Steel Quantity: 1

$ 49.49
$ 49.49 - $ 49.49
$ 49.49
$ 39.59
$ 39.59 - $ 39.59
$ 39.59
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$ 107.09
$ 107.09 - $ 107.09
$ 107.09
$ 85.69
$ 85.69 - $ 85.69
$ 85.69

Foster K6S/S, FHK Series, ISO B, 3/4" Two Way Shut-off, Plug, Stainless Steel

Series: FHK Part Number: K6S/S Interchange: ISO B 7241-1 Plug Body: 3/4" Valved Thread: 3/4" Female NPT, FPT Material: Stainless Steel Quantity: 1

$ 107.09
$ 107.09 - $ 107.09
$ 107.09
$ 85.69
$ 85.69 - $ 85.69
$ 85.69
Save 20% Save %
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$ 71.09
$ 71.09 - $ 71.09
$ 71.09
$ 56.89
$ 56.89 - $ 56.89
$ 56.89

Foster K4S/S, FHK Series, ISO B, 1/2" Two Way Shut-off, Plug, Stainless Steel

Series: FHK Part Number: K4S/S Interchange: ISO B 7241-1 Plug Body: 1/2" Valved Thread: 1/2" Female NPT, FPT Material: Stainless Steel Quantity: 1

$ 71.09
$ 71.09 - $ 71.09
$ 71.09
$ 56.89
$ 56.89 - $ 56.89
$ 56.89
Save 20% Save %
Save 20% Save %
$ 21.49
$ 21.49 - $ 21.49
$ 21.49
$ 17.19
$ 17.19 - $ 17.19
$ 17.19

Foster K4S, FHK Series, ISO B, 1/2" Two Way Shut-off, Plug, Steel

Series: FHK Part Number: K4S Interchange: ISO B 7241-1 Plug Body: 1/2" Valved Thread: 1/2" Female NPT, FPT Material: Solid Steel Quantity: 1

$ 21.49
$ 21.49 - $ 21.49
$ 21.49
$ 17.19
$ 17.19 - $ 17.19
$ 17.19
Save 20% Save %
Save 20% Save %
$ 40.59
$ 40.59 - $ 40.59
$ 40.59
$ 32.49
$ 32.49 - $ 32.49
$ 32.49

Foster K3S/S, FHK Series, ISO B, 3/8" Two Way Shut-off, Plug, Stainless Steel

Series: FHK Part Number: K3S/S Interchange: ISO B 7241-1 Plug Body: 3/8" Valved Thread: 3/8" Female NPT, FPT Material: Stainless Steel Quantity: 1

$ 40.59
$ 40.59 - $ 40.59
$ 40.59
$ 32.49
$ 32.49 - $ 32.49
$ 32.49
Save 20% Save %
Save 20% Save %
$ 381.59
$ 381.59 - $ 381.59
$ 381.59
$ 305.29
$ 305.29 - $ 305.29
$ 305.29

Foster H8S/S, FHK Series, ISO B, 1" Two Way Shut-off, Coupler, Stainless Steel

Series: FHK Part Number: H8S/S Interchange: ISO B 7241-1 Coupler Body: 1" Valved Thread: 1" Female NPT, FPT Material: Stainless Steel Quantity: 1

$ 381.59
$ 381.59 - $ 381.59
$ 381.59
$ 305.29
$ 305.29 - $ 305.29
$ 305.29
Save 20% Save %
Save 20% Save %
$ 108.29
$ 108.29 - $ 108.29
$ 108.29
$ 86.59
$ 86.59 - $ 86.59
$ 86.59

Foster H8S, FHK Series, ISO B, 1" Two Way Shut-off, Coupler, Steel

Series: FHK Part Number: H8S Interchange: ISO B 7241-1 Coupler Body: 1" Valved Thread: 1" Female NPT, FPT Material: Solid Steel Quantity: 1

$ 108.29
$ 108.29 - $ 108.29
$ 108.29
$ 86.59
$ 86.59 - $ 86.59
$ 86.59
Save 20% Save %
Save 20% Save %
$ 257.79
$ 257.79 - $ 257.79
$ 257.79
$ 206.19
$ 206.19 - $ 206.19
$ 206.19

Foster H6S/S, FHK Series, ISO B, 3/4" Two Way Shut-off, Coupler, Stainless Steel

Series: FHK Part Number: H6S/S Interchange: ISO B 7241-1 Coupler Body: 3/4" Valved Thread: 3/4" Female NPT, FPT Material: Solid Steel Quantity: 1

$ 257.79
$ 257.79 - $ 257.79
$ 257.79
$ 206.19
$ 206.19 - $ 206.19
$ 206.19
Save 20% Save %
Save 20% Save %
$ 88.09
$ 88.09 - $ 88.09
$ 88.09
$ 70.49
$ 70.49 - $ 70.49
$ 70.49

Foster H6S, FHK Series, ISO B, 3/4" Two Way Shut-off, Coupler, Steel

Series: FHK Part Number: H6S Interchange: ISO B 7241-1 Coupler Body: 3/4" Valved Thread: 3/4" Female NPT, FPT Material: Solid Steel Quantity: 1

$ 88.09
$ 88.09 - $ 88.09
$ 88.09
$ 70.49
$ 70.49 - $ 70.49
$ 70.49
Save 20% Save %
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$ 158.49
$ 158.49 - $ 158.49
$ 158.49
$ 126.79
$ 126.79 - $ 126.79
$ 126.79

Foster H4S/S, FHK Series, ISO B, 1/2" Two Way Shut-off, Coupler, Stainless Steel

Series: FHK Part Number: H4S/S Interchange: ISO B 7241-1 Coupler Body: 1/2" Valved Thread: 1/2" Female NPT, FPT Material: Stainless Steel Quantity: 1

$ 158.49
$ 158.49 - $ 158.49
$ 158.49
$ 126.79
$ 126.79 - $ 126.79
$ 126.79
Save 20% Save %
Save 20% Save %
$ 49.99
$ 49.99 - $ 49.99
$ 49.99
$ 39.99
$ 39.99 - $ 39.99
$ 39.99

Foster H4S, FHK Series, ISO B, 1/2" Two Way Shut-off, Coupler, Steel

Series: FHK Part Number: H4S Interchange: ISO B 7241-1 Coupler Body: 1/2" Valved Thread: 1/2" Female NPT, FPT Material: Solid Steel Quantity: 1

$ 49.99
$ 49.99 - $ 49.99
$ 49.99
$ 39.99
$ 39.99 - $ 39.99
$ 39.99
Save 20% Save %
Save 20% Save %
$ 90.09
$ 90.09 - $ 90.09
$ 90.09
$ 72.09
$ 72.09 - $ 72.09
$ 72.09

Foster H3S/S, FHK Series, ISO B, 3/8" Two Way Shut-off, Coupler, Stainless Steel

Series: FHK Part Number: H3S/S Interchange: ISO B 7241-1 Coupler Body: 3/8" Valved Thread: 3/8" Female NPT, FPT Material: Stainless Steel Quantity: 1

$ 90.09
$ 90.09 - $ 90.09
$ 90.09
$ 72.09
$ 72.09 - $ 72.09
$ 72.09
Save 20% Save %
Save 20% Save %
$ 38.79
$ 38.79 - $ 38.79
$ 38.79
$ 31.09
$ 31.09 - $ 31.09
$ 31.09

Foster H3S, FHK Series, ISO B, 3/8" Two Way Shut-off, Coupler, Steel

Series: FHK Part Number: H3S Interchange: ISO B 7241-1 Coupler Body: 3/8" Valved Thread: 3/8" Female NPT, FPT Material: Solid Steel Quantity: 1

$ 38.79
$ 38.79 - $ 38.79
$ 38.79
$ 31.09
$ 31.09 - $ 31.09
$ 31.09
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