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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 %
$ 24.99
$ 24.99 - $ 24.99
$ 24.99
$ 19.99
$ 19.99 - $ 19.99
$ 19.99

Foster A-3303, 1/4" Acetylene Coupler x 3/8" Male NPT, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-3303 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 cou...

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$ 24.99
$ 24.99 - $ 24.99
$ 24.99
$ 19.99
$ 19.99 - $ 19.99
$ 19.99
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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 %
$ 25.29
$ 25.29 - $ 25.29
$ 25.29
$ 20.29
$ 20.29 - $ 20.29
$ 20.29

Foster A-3603, 1/4" Acetylene Coupler x 1/4" Hose ID, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-3603 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 cou...

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$ 25.29
$ 25.29 - $ 25.29
$ 25.29
$ 20.29
$ 20.29 - $ 20.29
$ 20.29
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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 %
$ 25.39
$ 25.39 - $ 25.39
$ 25.39
$ 20.29
$ 20.29 - $ 20.29
$ 20.29

Foster A-3203, 1/4" Acetylene Coupler x 3/8" Female NPT, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-3203 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 cou...

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$ 25.39
$ 25.39 - $ 25.39
$ 25.39
$ 20.29
$ 20.29 - $ 20.29
$ 20.29
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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 %
$ 25.19
$ 25.19 - $ 25.19
$ 25.19
$ 20.19
$ 20.19 - $ 20.19
$ 20.19

Foster A-3703, 1/4" Acetylene Coupler x 3/8" Hose ID, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-3703 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 cou...

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$ 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 %
$ 24.09
$ 24.09 - $ 24.09
$ 24.09
$ 19.29
$ 19.29 - $ 19.29
$ 19.29

Foster A-3003, 1/4" Acetylene Coupler x 1/4" Female NPT, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-3003 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 cou...

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$ 24.09
$ 24.09 - $ 24.09
$ 24.09
$ 19.29
$ 19.29 - $ 19.29
$ 19.29
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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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$ 33.39
$ 33.39 - $ 33.39
$ 33.39
$ 26.69
$ 26.69 - $ 26.69
$ 26.69

Foster A-2803, 1/4" Acetylene Coupler x 1/8" Female NPT, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-2803 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 cou...

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$ 33.39
$ 33.39 - $ 33.39
$ 33.39
$ 26.69
$ 26.69 - $ 26.69
$ 26.69
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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 %
$ 24.19
$ 24.19 - $ 24.19
$ 24.19
$ 19.39
$ 19.39 - $ 19.39
$ 19.39

Foster A-3103, 1/4" Acetylene Coupler x 1/4" Male NPT, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-3103 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 cou...

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$ 24.19
$ 24.19 - $ 24.19
$ 24.19
$ 19.39
$ 19.39 - $ 19.39
$ 19.39
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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$ 10.59
$ 10.59 - $ 10.59
$ 10.59
$ 8.49
$ 8.49 - $ 8.49
$ 8.49

Foster A-17, 1/4" Acetylene Plug x 3/8" Hose ID, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-17 is a 1/4" plug from the A70 Series, which interchanges with Hansen 700 couplers...

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$ 10.59
$ 10.59 - $ 10.59
$ 10.59
$ 8.49
$ 8.49 - $ 8.49
$ 8.49
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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$ 29.49
$ 29.49 - $ 29.49
$ 29.49
$ 23.59
$ 23.59 - $ 23.59
$ 23.59

Foster A-2903, 1/4" Acetylene Coupler x 1/8" Male NPT, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-2903 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 cou...

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$ 29.49
$ 29.49 - $ 29.49
$ 29.49
$ 23.59
$ 23.59 - $ 23.59
$ 23.59
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 %
$ 9.49
$ 9.49 - $ 9.49
$ 9.49
$ 7.59
$ 7.59 - $ 7.59
$ 7.59

Foster A-12, 1/4" Acetylene Plug x 1/8" Male NPT, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-12 is a 1/4" plug from the A70 Series, which interchanges with Hansen 700 couplers...

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$ 9.49
$ 9.49 - $ 9.49
$ 9.49
$ 7.59
$ 7.59 - $ 7.59
$ 7.59
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 %
$ 9.79
$ 9.79 - $ 9.79
$ 9.79
$ 7.79
$ 7.79 - $ 7.79
$ 7.79

Foster A-10, 1/4" Acetylene Plug x 1/4" Male NPT, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-10 is a 1/4" plug from the A70 Series, which interchanges with Hansen 700 couplers...

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$ 9.79
$ 9.79 - $ 9.79
$ 9.79
$ 7.79
$ 7.79 - $ 7.79
$ 7.79
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 %
$ 10.59
$ 10.59 - $ 10.59
$ 10.59
$ 8.49
$ 8.49 - $ 8.49
$ 8.49

Foster A-16, 1/4" Acetylene Plug x 1/4" Hose ID, A70 Series (Hansen 700), Brass

Brass quick couplers for acetylene and gas service. The Foster A-16 is a 1/4" plug from the A70 Series, which interchanges with Hansen 700 couplers...

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$ 10.59
$ 10.59 - $ 10.59
$ 10.59
$ 8.49
$ 8.49 - $ 8.49
$ 8.49
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 %
$ 36.89
$ 36.89 - $ 36.89
$ 36.89
$ 29.49
$ 29.49 - $ 29.49
$ 29.49

Foster 3R4015, 3/8" Hansen RL Interchange Air Coupler x 3/8" NPT, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3R4015 is a 3/8" coupler from the 3FRL Series, which interchanges with Hansen 3/8" 3R...

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$ 36.89
$ 36.89 - $ 36.89
$ 36.89
$ 29.49
$ 29.49 - $ 29.49
$ 29.49
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 %
$ 24.59
$ 24.59 - $ 24.59
$ 24.59
$ 19.69
$ 19.69 - $ 19.69
$ 19.69

Foster 3L61G, 3/8" Hansen RL Interchange Air Plug Ball Check x 3/4" Hose ID, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3L61G is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL co...

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$ 24.59
$ 24.59 - $ 24.59
$ 24.59
$ 19.69
$ 19.69 - $ 19.69
$ 19.69
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 %
$ 16.19
$ 16.19 - $ 16.19
$ 16.19
$ 12.99
$ 12.99 - $ 12.99
$ 12.99

Foster 3L61, 3/8" Hansen RL Interchange Air Plug x 3/4" Hose ID, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3L61 is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL cou...

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$ 16.19
$ 16.19 - $ 16.19
$ 16.19
$ 12.99
$ 12.99 - $ 12.99
$ 12.99
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 %
$ 37.29
$ 37.29 - $ 37.29
$ 37.29
$ 29.79
$ 29.79 - $ 29.79
$ 29.79

Foster 3R4905, 3/8" Hansen RL Interchange Air Coupler x 3/8" NPT, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3R4905 is a 3/8" coupler from the 3FRL Series, which interchanges with Hansen 3/8" 3R...

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$ 37.29
$ 37.29 - $ 37.29
$ 37.29
$ 29.79
$ 29.79 - $ 29.79
$ 29.79
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 %
$ 17.99
$ 17.99 - $ 17.99
$ 17.99
$ 14.39
$ 14.39 - $ 14.39
$ 14.39

Foster 3L60, 3/8" Hansen RL Interchange Air Plug x 1/2" Hose ID, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3L60 is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL cou...

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$ 17.99
$ 17.99 - $ 17.99
$ 17.99
$ 14.39
$ 14.39 - $ 14.39
$ 14.39
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 %
$ 17.79
$ 17.79 - $ 17.79
$ 17.79
$ 14.19
$ 14.19 - $ 14.19
$ 14.19

Foster 3L60G, 3/8" Hansen RL Interchange Air Plug Ball Check x 1/2" Hose ID, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3L60G is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL co...

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$ 17.79
$ 17.79 - $ 17.79
$ 17.79
$ 14.19
$ 14.19 - $ 14.19
$ 14.19
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 %
$ 22.59
$ 22.59 - $ 22.59
$ 22.59
$ 18.09
$ 18.09 - $ 18.09
$ 18.09

Foster 3L58, 3/8" Hansen RL Interchange Air Plug x 1/4" Hose ID, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3L58 is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL cou...

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$ 22.59
$ 22.59 - $ 22.59
$ 22.59
$ 18.09
$ 18.09 - $ 18.09
$ 18.09
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 %
$ 22.49
$ 22.49 - $ 22.49
$ 22.49
$ 17.99
$ 17.99 - $ 17.99
$ 17.99

Foster 3L57, 3/8" Hansen RL Interchange Air Plug x 3/4" Female NPT, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3L57 is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL cou...

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$ 22.49
$ 22.49 - $ 22.49
$ 22.49
$ 17.99
$ 17.99 - $ 17.99
$ 17.99
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 %
$ 17.79
$ 17.79 - $ 17.79
$ 17.79
$ 14.19
$ 14.19 - $ 14.19
$ 14.19

Foster 3L59G, 3/8" Hansen RL Interchange Air Plug Ball Check x 3/8" Hose ID, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3L59G is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL co...

View full details
$ 17.79
$ 17.79 - $ 17.79
$ 17.79
$ 14.19
$ 14.19 - $ 14.19
$ 14.19
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 %
$ 14.09
$ 14.09 - $ 14.09
$ 14.09
$ 11.29
$ 11.29 - $ 11.29
$ 11.29

Foster 3L56, 3/8" Hansen RL Interchange Air Plug x 3/4" Male NPT, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3L56 is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL cou...

View full details
$ 14.09
$ 14.09 - $ 14.09
$ 14.09
$ 11.29
$ 11.29 - $ 11.29
$ 11.29
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 %
$ 7.99
$ 7.99 - $ 7.99
$ 7.99
$ 6.39
$ 6.39 - $ 6.39
$ 6.39

Foster 3L59, 3/8" Hansen RL Interchange Air Plug x 3/8" Hose ID, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3L59 is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL cou...

View full details
$ 7.99
$ 7.99 - $ 7.99
$ 7.99
$ 6.39
$ 6.39 - $ 6.39
$ 6.39
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 %
$ 17.79
$ 17.79 - $ 17.79
$ 17.79
$ 14.19
$ 14.19 - $ 14.19
$ 14.19

Foster 3L55G, 3/8" Hansen RL Interchange Air Plug Ball Check x 1/2" Female NPT, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3L55G is a 3/8" plug from the 3FRL Series, which interchanges with Hansen 3/8" 3RL co...

View full details
$ 17.79
$ 17.79 - $ 17.79
$ 17.79
$ 14.19
$ 14.19 - $ 14.19
$ 14.19
Save 20% Save %

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