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Foster ISO-B Series Couplers

Foster ISO-B (FHK) Series hydraulic quick couplers and plugs, compatible with ISO 7241-1 Series B — the most widely used industrial hydraulic interchange. Two-way shut-off seals both halves at disconnect to prevent fluid loss and air inclusion. Manual sleeve connection at zero pressure. Body sizes 1/8" to 1", in RoHS-plated steel, brass, and 303/316 stainless with Buna-N seals.

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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 %
$ 4.79
$ 4.79 - $ 4.79
$ 4.79
$ 3.89
$ 3.89 - $ 3.89
$ 3.89

Foster B1DC, 1/8" ISO-B Dust Cap, FHK Series, Rubber

The Foster B1DC is a 1/8" ISO-B dust cap in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects coupler (female half) from ...

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$ 4.79
$ 4.79 - $ 4.79
$ 4.79
$ 3.89
$ 3.89 - $ 3.89
$ 3.89
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 %
$ 5.99
$ 5.99 - $ 5.99
$ 5.99
$ 4.79
$ 4.79 - $ 4.79
$ 4.79

Foster B1DP, 1/8" ISO-B Dust Plug, FHK Series, Rubber

The Foster B1DP is a 1/8" ISO-B dust plug in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects plug (male half) from dirt...

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$ 5.99
$ 5.99 - $ 5.99
$ 5.99
$ 4.79
$ 4.79 - $ 4.79
$ 4.79
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 %
$ 6.19
$ 6.19 - $ 6.19
$ 6.19
$ 4.89
$ 4.89 - $ 4.89
$ 4.89

Foster B2DC-DP, 1/4" ISO-B Dust Cap & Plug Combo, FHK Series, Rubber

The Foster B2DC-DP is a 1/4" ISO-B dust cap & plug combo in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects both co...

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$ 6.19
$ 6.19 - $ 6.19
$ 6.19
$ 4.89
$ 4.89 - $ 4.89
$ 4.89
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 %
$ 6.59
$ 6.59 - $ 6.59
$ 6.59
$ 5.29
$ 5.29 - $ 5.29
$ 5.29

Foster B3DC-BLUE, 3/8" ISO-B Dust Cap (Blue), FHK Series, Rubber

The Foster B3DC-BLUE is a 3/8" ISO-B dust cap in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects coupler (female half) ...

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$ 6.59
$ 6.59 - $ 6.59
$ 6.59
$ 5.29
$ 5.29 - $ 5.29
$ 5.29
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 %
$ 6.79
$ 6.79 - $ 6.79
$ 6.79
$ 5.49
$ 5.49 - $ 5.49
$ 5.49

Foster B3DC-DP, 3/8" ISO-B Dust Cap & Plug Combo, FHK Series, Rubber

The Foster B3DC-DP is a 3/8" ISO-B dust cap & plug combo in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects both co...

View full details
$ 6.79
$ 6.79 - $ 6.79
$ 6.79
$ 5.49
$ 5.49 - $ 5.49
$ 5.49
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 %
$ 6.59
$ 6.59 - $ 6.59
$ 6.59
$ 5.29
$ 5.29 - $ 5.29
$ 5.29

Foster B3DP-BLUE, 3/8" ISO-B Dust Plug (Blue), FHK Series, Rubber

The Foster B3DP-BLUE is a 3/8" ISO-B dust plug in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects plug (male half) from...

View full details
$ 6.59
$ 6.59 - $ 6.59
$ 6.59
$ 5.29
$ 5.29 - $ 5.29
$ 5.29
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 %
$ 7.49
$ 7.49 - $ 7.49
$ 7.49
$ 5.99
$ 5.99 - $ 5.99
$ 5.99

Foster B4DC-DP, 1/2" ISO-B Dust Cap & Plug Combo, FHK Series, Rubber

The Foster B4DC-DP is a 1/2" ISO-B dust cap & plug combo in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects both co...

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$ 7.49
$ 7.49 - $ 7.49
$ 7.49
$ 5.99
$ 5.99 - $ 5.99
$ 5.99
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 %
$ 5.69
$ 5.69 - $ 5.69
$ 5.69
$ 4.59
$ 4.59 - $ 4.59
$ 4.59

Foster B4DP-BLUE, 1/2" ISO-B Dust Plug (Blue), FHK Series, Rubber

The Foster B4DP-BLUE is a 1/2" ISO-B dust plug in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects plug (male half) from...

View full details
$ 5.69
$ 5.69 - $ 5.69
$ 5.69
$ 4.59
$ 4.59 - $ 4.59
$ 4.59
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 19% Save %
$ 8.29
$ 8.29 - $ 8.29
$ 8.29
$ 6.69
$ 6.69 - $ 6.69
$ 6.69

Foster B6DC-BLUE, 3/4" ISO-B Dust Cap (Blue), FHK Series, Rubber

The Foster B6DC-BLUE is a 3/4" ISO-B dust cap in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects coupler (female half) ...

View full details
$ 8.29
$ 8.29 - $ 8.29
$ 8.29
$ 6.69
$ 6.69 - $ 6.69
$ 6.69
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 %
$ 13.49
$ 13.49 - $ 13.49
$ 13.49
$ 10.79
$ 10.79 - $ 10.79
$ 10.79

Foster B6DC-DP, 3/4" ISO-B Dust Cap & Plug Combo, FHK Series, Rubber

The Foster B6DC-DP is a 3/4" ISO-B dust cap & plug combo in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects both co...

View full details
$ 13.49
$ 13.49 - $ 13.49
$ 13.49
$ 10.79
$ 10.79 - $ 10.79
$ 10.79
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 %
$ 8.29
$ 8.29 - $ 8.29
$ 8.29
$ 6.69
$ 6.69 - $ 6.69
$ 6.69

Foster B6DP-BLUE, 3/4" ISO-B Dust Plug (Blue), FHK Series, Rubber

The Foster B6DP-BLUE is a 3/4" ISO-B dust plug in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects plug (male half) from...

View full details
$ 8.29
$ 8.29 - $ 8.29
$ 8.29
$ 6.69
$ 6.69 - $ 6.69
$ 6.69
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 %
$ 10.39
$ 10.39 - $ 10.39
$ 10.39
$ 8.29
$ 8.29 - $ 8.29
$ 8.29

Foster B8DC-BLUE, 1" ISO-B Dust Cap (Blue), FHK Series, Rubber

The Foster B8DC-BLUE is a 1" ISO-B dust cap in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects coupler (female half) fr...

View full details
$ 10.39
$ 10.39 - $ 10.39
$ 10.39
$ 8.29
$ 8.29 - $ 8.29
$ 8.29
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 %
$ 15.69
$ 15.69 - $ 15.69
$ 15.69
$ 12.49
$ 12.49 - $ 12.49
$ 12.49

Foster B8DC-DP, 1" ISO-B Dust Cap & Plug Combo, FHK Series, Rubber

The Foster B8DC-DP is a 1" ISO-B dust cap & plug combo in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects both coup...

View full details
$ 15.69
$ 15.69 - $ 15.69
$ 15.69
$ 12.49
$ 12.49 - $ 12.49
$ 12.49
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 %
$ 10.39
$ 10.39 - $ 10.39
$ 10.39
$ 8.29
$ 8.29 - $ 8.29
$ 8.29

Foster B8DP-BLUE, 1" ISO-B Dust Plug (Blue), FHK Series, Rubber

The Foster B8DP-BLUE is a 1" ISO-B dust plug in rubber for FHK / ISO 7241-1 Series B hydraulic quick couplings. It protects plug (male half) from d...

View full details
$ 10.39
$ 10.39 - $ 10.39
$ 10.39
$ 8.29
$ 8.29 - $ 8.29
$ 8.29
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 %
$ 30.29
$ 30.29 - $ 30.29
$ 30.29
$ 24.29
$ 24.29 - $ 24.29
$ 24.29

Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH1B is a brass 1/8" coupler in the FHK ...

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$ 30.29
$ 30.29 - $ 30.29
$ 30.29
$ 24.29
$ 24.29 - $ 24.29
$ 24.29
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 %
$ 30.09
$ 30.09 - $ 30.09
$ 30.09
$ 24.09
$ 24.09 - $ 24.09
$ 24.09

Foster BLH1S, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH1S is a steel 1/8" coupler in the FHK ...

View full details
$ 30.09
$ 30.09 - $ 30.09
$ 30.09
$ 24.09
$ 24.09 - $ 24.09
$ 24.09
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 %
$ 75.19
$ 75.19 - $ 75.19
$ 75.19
$ 60.09
$ 60.09 - $ 60.09
$ 60.09

Foster BLH1S/S, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH1S/S is a 303 stainless 1/8" coupler i...

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$ 75.19
$ 75.19 - $ 75.19
$ 75.19
$ 60.09
$ 60.09 - $ 60.09
$ 60.09
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 %
$ 33.79
$ 33.79 - $ 33.79
$ 33.79
$ 26.99
$ 26.99 - $ 26.99
$ 26.99

Foster BLH1S4, 1/8" ISO-B Hydraulic Coupler x 7/16"-20 SAE, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH1S4 is a steel 1/8" coupler in the FHK...

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$ 33.79
$ 33.79 - $ 33.79
$ 33.79
$ 26.99
$ 26.99 - $ 26.99
$ 26.99
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 %
$ 36.89
$ 36.89 - $ 36.89
$ 36.89
$ 29.49
$ 29.49 - $ 29.49
$ 29.49

Foster BLH2B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Ball Lock, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH2B is a brass 1/4" coupler in the FHK ...

View full details
$ 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 %
$ 31.89
$ 31.89 - $ 31.89
$ 31.89
$ 25.59
$ 25.59 - $ 25.59
$ 25.59

Foster BLH2S, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH2S is a steel 1/4" coupler in the FHK ...

View full details
$ 31.89
$ 31.89 - $ 31.89
$ 31.89
$ 25.59
$ 25.59 - $ 25.59
$ 25.59
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 %
$ 76.99
$ 76.99 - $ 76.99
$ 76.99
$ 61.59
$ 61.59 - $ 61.59
$ 61.59

Foster BLH2S/S, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH2S/S is a 303 stainless 1/4" coupler i...

View full details
$ 76.99
$ 76.99 - $ 76.99
$ 76.99
$ 61.59
$ 61.59 - $ 61.59
$ 61.59
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 %
$ 36.09
$ 36.09 - $ 36.09
$ 36.09
$ 28.89
$ 28.89 - $ 28.89
$ 28.89

Foster BLH2S6, 1/4" ISO-B Hydraulic Coupler x 9/16"-18 SAE, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH2S6 is a steel 1/4" coupler in the FHK...

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$ 36.09
$ 36.09 - $ 36.09
$ 36.09
$ 28.89
$ 28.89 - $ 28.89
$ 28.89
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 %
$ 49.09
$ 49.09 - $ 49.09
$ 49.09
$ 39.29
$ 39.29 - $ 39.29
$ 39.29

Foster BLH3B, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Ball Lock, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH3B is a brass 3/8" coupler in the FHK ...

View full details
$ 49.09
$ 49.09 - $ 49.09
$ 49.09
$ 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 %
$ 47.59
$ 47.59 - $ 47.59
$ 47.59
$ 38.09
$ 38.09 - $ 38.09
$ 38.09

Foster BLH3S, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH3S is a steel 3/8" coupler in the FHK ...

View full details
$ 47.59
$ 47.59 - $ 47.59
$ 47.59
$ 38.09
$ 38.09 - $ 38.09
$ 38.09
Save 20% Save %

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