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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 %
$ 790.00
$ 790.00 - $ 790.00
$ 790.00
$ 633.00
$ 633.00 - $ 633.00
$ 633.00

Foster FM5705, 1/2" Industrial Coupler x 3/8" Hose ID, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5705 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 790.00
$ 790.00 - $ 790.00
$ 790.00
$ 633.00
$ 633.00 - $ 633.00
$ 633.00
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 %
$ 911.00
$ 911.00 - $ 911.00
$ 911.00
$ 728.00
$ 728.00 - $ 728.00
$ 728.00

Foster SL5605, 1/2" Industrial Coupler x 1/4" Hose ID, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5605 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 911.00
$ 911.00 - $ 911.00
$ 911.00
$ 728.00
$ 728.00 - $ 728.00
$ 728.00
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 %
$ 786.00
$ 786.00 - $ 786.00
$ 786.00
$ 629.00
$ 629.00 - $ 629.00
$ 629.00

Foster FM5605, 1/2" Industrial Coupler x 1/4" Hose ID, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5605 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 786.00
$ 786.00 - $ 786.00
$ 786.00
$ 629.00
$ 629.00 - $ 629.00
$ 629.00
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 %
$ 696.00
$ 696.00 - $ 696.00
$ 696.00
$ 557.00
$ 557.00 - $ 557.00
$ 557.00

Foster FM1815, 1/2" Industrial Coupler x 1/2" Push-On Hose Stem, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM1815 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 696.00
$ 696.00 - $ 696.00
$ 696.00
$ 557.00
$ 557.00 - $ 557.00
$ 557.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 904.00
$ 904.00 - $ 904.00
$ 904.00
$ 724.00
$ 724.00 - $ 724.00
$ 724.00

Foster FM5505S, 1/2" Industrial Coupler x 3/4" Male NPT, 5 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5505S is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 904.00
$ 904.00 - $ 904.00
$ 904.00
$ 724.00
$ 724.00 - $ 724.00
$ 724.00
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 %
$ 872.00
$ 872.00 - $ 872.00
$ 872.00
$ 698.00
$ 698.00 - $ 698.00
$ 698.00

Foster SL5505, 1/2" Industrial Coupler x 3/4" Male NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5505 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 872.00
$ 872.00 - $ 872.00
$ 872.00
$ 698.00
$ 698.00 - $ 698.00
$ 698.00
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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$ 767.00
$ 767.00 - $ 767.00
$ 767.00
$ 613.00
$ 613.00 - $ 613.00
$ 613.00

Foster FM5505, 1/2" Industrial Coupler x 3/4" Male NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5505 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 767.00
$ 767.00 - $ 767.00
$ 767.00
$ 613.00
$ 613.00 - $ 613.00
$ 613.00
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 %
$ 858.00
$ 858.00 - $ 858.00
$ 858.00
$ 687.00
$ 687.00 - $ 687.00
$ 687.00

Foster FM5305W, 1/2" Industrial Coupler x 1/2" Male NPT, 5 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5305W is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 858.00
$ 858.00 - $ 858.00
$ 858.00
$ 687.00
$ 687.00 - $ 687.00
$ 687.00
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 %
$ 893.00
$ 893.00 - $ 893.00
$ 893.00
$ 716.00
$ 716.00 - $ 716.00
$ 716.00

Foster FM5305S, 1/2" Industrial Coupler x 1/2" Male NPT, 5 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5305S is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 893.00
$ 893.00 - $ 893.00
$ 893.00
$ 716.00
$ 716.00 - $ 716.00
$ 716.00
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 %
$ 862.00
$ 862.00 - $ 862.00
$ 862.00
$ 689.00
$ 689.00 - $ 689.00
$ 689.00

Foster SL5305, 1/2" Industrial Coupler x 1/2" Male NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5305 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 862.00
$ 862.00 - $ 862.00
$ 862.00
$ 689.00
$ 689.00 - $ 689.00
$ 689.00
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 %
$ 772.00
$ 772.00 - $ 772.00
$ 772.00
$ 617.00
$ 617.00 - $ 617.00
$ 617.00

Foster FM5305, 1/2" Industrial Coupler x 1/2" Male NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5305 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 772.00
$ 772.00 - $ 772.00
$ 772.00
$ 617.00
$ 617.00 - $ 617.00
$ 617.00
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 %
$ 848.00
$ 848.00 - $ 848.00
$ 848.00
$ 679.00
$ 679.00 - $ 679.00
$ 679.00

Foster SL5105, 1/2" Industrial Coupler x 3/8" Male NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5105 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 848.00
$ 848.00 - $ 848.00
$ 848.00
$ 679.00
$ 679.00 - $ 679.00
$ 679.00
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 %
$ 751.00
$ 751.00 - $ 751.00
$ 751.00
$ 601.00
$ 601.00 - $ 601.00
$ 601.00

Foster FM5105, 1/2" Industrial Coupler x 3/8" Male NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5105 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 751.00
$ 751.00 - $ 751.00
$ 751.00
$ 601.00
$ 601.00 - $ 601.00
$ 601.00
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 %
$ 830.00
$ 830.00 - $ 830.00
$ 830.00
$ 664.00
$ 664.00 - $ 664.00
$ 664.00

Foster SL4905, 1/2" Industrial Coupler x 1/4" Male NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL4905 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 830.00
$ 830.00 - $ 830.00
$ 830.00
$ 664.00
$ 664.00 - $ 664.00
$ 664.00
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 %
$ 737.00
$ 737.00 - $ 737.00
$ 737.00
$ 589.00
$ 589.00 - $ 589.00
$ 589.00

Foster FM4905, 1/2" Industrial Coupler x 1/4" Male NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM4905 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 737.00
$ 737.00 - $ 737.00
$ 737.00
$ 589.00
$ 589.00 - $ 589.00
$ 589.00
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 %
$ 865.00
$ 865.00 - $ 865.00
$ 865.00
$ 693.00
$ 693.00 - $ 693.00
$ 693.00

Foster FM5405W, 1/2" Industrial Coupler x 3/4" Female NPT, 5 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5405W is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 865.00
$ 865.00 - $ 865.00
$ 865.00
$ 693.00
$ 693.00 - $ 693.00
$ 693.00
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 %
$ 904.00
$ 904.00 - $ 904.00
$ 904.00
$ 723.00
$ 723.00 - $ 723.00
$ 723.00

Foster SL5405, 1/2" Industrial Coupler x 3/4" Female NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5405 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 904.00
$ 904.00 - $ 904.00
$ 904.00
$ 723.00
$ 723.00 - $ 723.00
$ 723.00
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 %
$ 763.00
$ 763.00 - $ 763.00
$ 763.00
$ 612.00
$ 612.00 - $ 612.00
$ 612.00

Foster FM5405, 1/2" Industrial Coupler x 3/4" Female NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5405 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 763.00
$ 763.00 - $ 763.00
$ 763.00
$ 612.00
$ 612.00 - $ 612.00
$ 612.00
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 %
$ 851.00
$ 851.00 - $ 851.00
$ 851.00
$ 680.00
$ 680.00 - $ 680.00
$ 680.00

Foster FM5205W, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5205W is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 851.00
$ 851.00 - $ 851.00
$ 851.00
$ 680.00
$ 680.00 - $ 680.00
$ 680.00
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 %
$ 918.00
$ 918.00 - $ 918.00
$ 918.00
$ 735.00
$ 735.00 - $ 735.00
$ 735.00

Foster FM5205S, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5205S is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 918.00
$ 918.00 - $ 918.00
$ 918.00
$ 735.00
$ 735.00 - $ 735.00
$ 735.00
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 %
$ 761.00
$ 761.00 - $ 761.00
$ 761.00
$ 608.00
$ 608.00 - $ 608.00
$ 608.00

Foster FM5205LV, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic, Less Valve, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5205LV is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 761.00
$ 761.00 - $ 761.00
$ 761.00
$ 608.00
$ 608.00 - $ 608.00
$ 608.00
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 %
$ 841.00
$ 841.00 - $ 841.00
$ 841.00
$ 672.00
$ 672.00 - $ 672.00
$ 672.00

Foster FM5205H, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic, Heat/Viton, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5205H is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 841.00
$ 841.00 - $ 841.00
$ 841.00
$ 672.00
$ 672.00 - $ 672.00
$ 672.00
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 %
$ 855.00
$ 855.00 - $ 855.00
$ 855.00
$ 684.00
$ 684.00 - $ 684.00
$ 684.00

Foster SL5205, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5205 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 855.00
$ 855.00 - $ 855.00
$ 855.00
$ 684.00
$ 684.00 - $ 684.00
$ 684.00
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 %
$ 740.00
$ 740.00 - $ 740.00
$ 740.00
$ 592.00
$ 592.00 - $ 592.00
$ 592.00

Foster FM5205, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5205 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 740.00
$ 740.00 - $ 740.00
$ 740.00
$ 592.00
$ 592.00 - $ 592.00
$ 592.00
Save 20% Save %

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