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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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$ 29.19
$ 29.19 - $ 29.19
$ 29.19
$ 23.29
$ 23.29 - $ 23.29
$ 23.29

Foster 310-4004, Aro 310 Series, Coupler, Automatic, 1/4" Female NPT, Brass, Steel

Series: 310 Part number: 310-3003 Interchange: Aro 310 Body: 3/8" Coupler, Automatic Thread: 1/4" Female NPT, FPT Material: Heavy-Duty Brass...

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$ 29.19
$ 29.19 - $ 29.19
$ 29.19
$ 23.29
$ 23.29 - $ 23.29
$ 23.29
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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
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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
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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
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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
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$ 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
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$ 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
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$ 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
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$ 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
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$ 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
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$ 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
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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
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$ 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
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$ 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
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$ 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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$ 24.59
$ 24.59 - $ 24.59
$ 24.59
$ 19.69
$ 19.69 - $ 19.69
$ 19.69

Foster H2S, FHK Series, ISO B, 1/4" Two Way Shut-off, Coupler, Steel

Series: FHK Part Number: H2S Interchange: ISO B 7241-1 Coupler Body: 1/4" Valved Thread: 1/4" Female NPT, FPT Material: Solid Steel Quantity: 1

$ 24.59
$ 24.59 - $ 24.59
$ 24.59
$ 19.69
$ 19.69 - $ 19.69
$ 19.69
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$ 6.79
$ 6.79 - $ 6.79
$ 6.79
$ 5.49
$ 5.49 - $ 5.49
$ 5.49

Foster 310-43, Aro 310 Series, Plug, Automatic, 3/8" Female NPT, Steel

Series: 310 Part number: 310-43 Interchange: Aro 310 Body: 3/8" Plug, Automatic Thread: 3/8" Female NPT, FPT Material: Heavy-Duty  Steel Ra...

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$ 6.79
$ 6.79 - $ 6.79
$ 6.79
$ 5.49
$ 5.49 - $ 5.49
$ 5.49
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Save 21% Save %
$ 5.19
$ 5.19 - $ 5.19
$ 5.19
$ 4.09
$ 4.09 - $ 4.09
$ 4.09

Foster 310-42, Aro 310 Series, Plug, Automatic, 3/8" Male NPT, Steel

Series: 310 Part number: 310-42 Interchange: Aro 310 Body: 3/8" Plug, Automatic Thread: 3/8" Male NPT, MPT Material: Heavy-Duty  Steel Rate...

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$ 5.19
$ 5.19 - $ 5.19
$ 5.19
$ 4.09
$ 4.09 - $ 4.09
$ 4.09
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$ 77.19
$ 77.19 - $ 77.19
$ 77.19
$ 61.79
$ 61.79 - $ 61.79
$ 61.79

Foster 7006, 6 Series, Industrial Coupler, Automatic, 1" Hose Barb, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM7006 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 77.19
$ 77.19 - $ 77.19
$ 77.19
$ 61.79
$ 61.79 - $ 61.79
$ 61.79
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$ 66.89
$ 66.89 - $ 66.89
$ 66.89
$ 53.49
$ 53.49 - $ 53.49
$ 53.49

Foster H1S/S, FHK Series, ISO B, 1/8" Two Way Shut-off, Coupler, Stainless Steel

Series: FHK Part Number: H1S/S Interchange: ISO B 7241-1 Coupler Body: 1/8" Valved Thread: 1/8" Female NPT, FPT Material: Stainless Steel Quantity: 1

$ 66.89
$ 66.89 - $ 66.89
$ 66.89
$ 53.49
$ 53.49 - $ 53.49
$ 53.49
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$ 70.69
$ 70.69 - $ 70.69
$ 70.69
$ 56.59
$ 56.59 - $ 56.59
$ 56.59

Foster FM6306, 6 Series, Industrial Coupler, Automatic, 1/2" Male NPT, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6306 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 70.69
$ 70.69 - $ 70.69
$ 70.69
$ 56.59
$ 56.59 - $ 56.59
$ 56.59
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$ 65.99
$ 65.99 - $ 65.99
$ 65.99
$ 52.79
$ 52.79 - $ 52.79
$ 52.79

Foster FM6206, 6 Series, Industrial Coupler, Automatic, 1/2" Female NPT, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6206 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 65.99
$ 65.99 - $ 65.99
$ 65.99
$ 52.79
$ 52.79 - $ 52.79
$ 52.79
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