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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Original price $ 538.00Original price $ 538.00 - Original price $ 538.00Original price $ 538.00Current price $ 431.00$ 431.00 - $ 431.00Current price $ 431.00
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH1B is a brass 1/8" coupler from the ISO-...
View full detailsOriginal price $ 538.00Original price $ 538.00 - Original price $ 538.00Original price $ 538.00Current price $ 431.00$ 431.00 - $ 431.00Current price $ 431.00Save 20% -
Original price $ 534.00Original price $ 534.00 - Original price $ 534.00Original price $ 534.00Current price $ 428.00$ 428.00 - $ 428.00Current price $ 428.00
Foster BLH1S, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH1S is a plated steel 1/8" coupler from t...
View full detailsOriginal price $ 534.00Original price $ 534.00 - Original price $ 534.00Original price $ 534.00Current price $ 428.00$ 428.00 - $ 428.00Current price $ 428.00Save 20% -
Original price $ 1,334.00Original price $ 1,334.00 - Original price $ 1,334.00Original price $ 1,334.00Current price $ 1,066.00$ 1,066.00 - $ 1,066.00Current price $ 1,066.00
Foster BLH1S/S, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH1S/S is a 303 stainless steel 1/8" coupl...
View full detailsOriginal price $ 1,334.00Original price $ 1,334.00 - Original price $ 1,334.00Original price $ 1,334.00Current price $ 1,066.00$ 1,066.00 - $ 1,066.00Current price $ 1,066.00Save 20% -
Original price $ 600.00Original price $ 600.00 - Original price $ 600.00Original price $ 600.00Current price $ 479.00$ 479.00 - $ 479.00Current price $ 479.00
Foster BLH1S4, 1/8" ISO-B Hydraulic Coupler x 7/16"-20 SAE, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH1S4 is a plated steel 1/8" coupler from ...
View full detailsOriginal price $ 600.00Original price $ 600.00 - Original price $ 600.00Original price $ 600.00Current price $ 479.00$ 479.00 - $ 479.00Current price $ 479.00Save 20% -
Original price $ 655.00Original price $ 655.00 - Original price $ 655.00Original price $ 655.00Current price $ 523.00$ 523.00 - $ 523.00Current price $ 523.00
Foster BLH2B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Ball Lock, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH2B is a brass 1/4" coupler from the ISO-...
View full detailsOriginal price $ 655.00Original price $ 655.00 - Original price $ 655.00Original price $ 655.00Current price $ 523.00$ 523.00 - $ 523.00Current price $ 523.00Save 20% -
Original price $ 566.00Original price $ 566.00 - Original price $ 566.00Original price $ 566.00Current price $ 454.00$ 454.00 - $ 454.00Current price $ 454.00
Foster BLH2S, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH2S is a plated steel 1/4" coupler from t...
View full detailsOriginal price $ 566.00Original price $ 566.00 - Original price $ 566.00Original price $ 566.00Current price $ 454.00$ 454.00 - $ 454.00Current price $ 454.00Save 20% -
Original price $ 1,366.00Original price $ 1,366.00 - Original price $ 1,366.00Original price $ 1,366.00Current price $ 1,093.00$ 1,093.00 - $ 1,093.00Current price $ 1,093.00
Foster BLH2S/S, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH2S/S is a 303 stainless steel 1/4" coupl...
View full detailsOriginal price $ 1,366.00Original price $ 1,366.00 - Original price $ 1,366.00Original price $ 1,366.00Current price $ 1,093.00$ 1,093.00 - $ 1,093.00Current price $ 1,093.00Save 20% -
Original price $ 641.00Original price $ 641.00 - Original price $ 641.00Original price $ 641.00Current price $ 513.00$ 513.00 - $ 513.00Current price $ 513.00
Foster BLH2S6, 1/4" ISO-B Hydraulic Coupler x 9/16"-18 SAE, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH2S6 is a plated steel 1/4" coupler from ...
View full detailsOriginal price $ 641.00Original price $ 641.00 - Original price $ 641.00Original price $ 641.00Current price $ 513.00$ 513.00 - $ 513.00Current price $ 513.00Save 20% -
Original price $ 871.00Original price $ 871.00 - Original price $ 871.00Original price $ 871.00Current price $ 697.00$ 697.00 - $ 697.00Current price $ 697.00
Foster BLH3B, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Ball Lock, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH3B is a brass 3/8" coupler from the ISO-...
View full detailsOriginal price $ 871.00Original price $ 871.00 - Original price $ 871.00Original price $ 871.00Current price $ 697.00$ 697.00 - $ 697.00Current price $ 697.00Save 20% -
Original price $ 844.00Original price $ 844.00 - Original price $ 844.00Original price $ 844.00Current price $ 676.00$ 676.00 - $ 676.00Current price $ 676.00
Foster BLH3S, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH3S is a plated steel 3/8" coupler from t...
View full detailsOriginal price $ 844.00Original price $ 844.00 - Original price $ 844.00Original price $ 844.00Current price $ 676.00$ 676.00 - $ 676.00Current price $ 676.00Save 20% -
Original price $ 1,784.00Original price $ 1,784.00 - Original price $ 1,784.00Original price $ 1,784.00Current price $ 1,428.00$ 1,428.00 - $ 1,428.00Current price $ 1,428.00
Foster BLH3S/S, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH3S/S is a 303 stainless steel 3/8" coupl...
View full detailsOriginal price $ 1,784.00Original price $ 1,784.00 - Original price $ 1,784.00Original price $ 1,784.00Current price $ 1,428.00$ 1,428.00 - $ 1,428.00Current price $ 1,428.00Save 20% -
Original price $ 930.00Original price $ 930.00 - Original price $ 930.00Original price $ 930.00Current price $ 743.00$ 743.00 - $ 743.00Current price $ 743.00
Foster BLH3S8, 3/8" ISO-B Hydraulic Coupler x 3/4"-16 SAE, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH3S8 is a plated steel 3/8" coupler from ...
View full detailsOriginal price $ 930.00Original price $ 930.00 - Original price $ 930.00Original price $ 930.00Current price $ 743.00$ 743.00 - $ 743.00Current price $ 743.00Save 20% -
Original price $ 1,345.00Original price $ 1,345.00 - Original price $ 1,345.00Original price $ 1,345.00Current price $ 1,075.00$ 1,075.00 - $ 1,075.00Current price $ 1,075.00
Foster BLH4B, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Ball Lock, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH4B is a brass 1/2" coupler from the ISO-...
View full detailsOriginal price $ 1,345.00Original price $ 1,345.00 - Original price $ 1,345.00Original price $ 1,345.00Current price $ 1,075.00$ 1,075.00 - $ 1,075.00Current price $ 1,075.00Save 20% -
Original price $ 1,047.00Original price $ 1,047.00 - Original price $ 1,047.00Original price $ 1,047.00Current price $ 837.00$ 837.00 - $ 837.00Current price $ 837.00
Foster BLH4S, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH4S is a plated steel 1/2" coupler from t...
View full detailsOriginal price $ 1,047.00Original price $ 1,047.00 - Original price $ 1,047.00Original price $ 1,047.00Current price $ 837.00$ 837.00 - $ 837.00Current price $ 837.00Save 20% -
Original price $ 3,001.00Original price $ 3,001.00 - Original price $ 3,001.00Original price $ 3,001.00Current price $ 2,402.00$ 2,402.00 - $ 2,402.00Current price $ 2,402.00
Foster BLH4S/S, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH4S/S is a 303 stainless steel 1/2" coupl...
View full detailsOriginal price $ 3,001.00Original price $ 3,001.00 - Original price $ 3,001.00Original price $ 3,001.00Current price $ 2,402.00$ 2,402.00 - $ 2,402.00Current price $ 2,402.00Save 20% -
Original price $ 1,258.00Original price $ 1,258.00 - Original price $ 1,258.00Original price $ 1,258.00Current price $ 1,008.00$ 1,008.00 - $ 1,008.00Current price $ 1,008.00
Foster BLH4S10, 1/2" ISO-B Hydraulic Coupler x 7/8"-14 SAE, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH4S10 is a plated steel 1/2" coupler from...
View full detailsOriginal price $ 1,258.00Original price $ 1,258.00 - Original price $ 1,258.00Original price $ 1,258.00Current price $ 1,008.00$ 1,008.00 - $ 1,008.00Current price $ 1,008.00Save 20% -
Original price $ 2,306.00Original price $ 2,306.00 - Original price $ 2,306.00Original price $ 2,306.00Current price $ 1,845.00$ 1,845.00 - $ 1,845.00Current price $ 1,845.00
Foster BLH6B, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Ball Lock, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH6B is a brass 3/4" coupler from the ISO-...
View full detailsOriginal price $ 2,306.00Original price $ 2,306.00 - Original price $ 2,306.00Original price $ 2,306.00Current price $ 1,845.00$ 1,845.00 - $ 1,845.00Current price $ 1,845.00Save 20% -
Original price $ 1,774.00Original price $ 1,774.00 - Original price $ 1,774.00Original price $ 1,774.00Current price $ 1,419.00$ 1,419.00 - $ 1,419.00Current price $ 1,419.00
Foster BLH6S, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH6S is a plated steel 3/4" coupler from t...
View full detailsOriginal price $ 1,774.00Original price $ 1,774.00 - Original price $ 1,774.00Original price $ 1,774.00Current price $ 1,419.00$ 1,419.00 - $ 1,419.00Current price $ 1,419.00Save 20% -
Original price $ 4,845.00Original price $ 4,845.00 - Original price $ 4,845.00Original price $ 4,845.00Current price $ 3,875.00$ 3,875.00 - $ 3,875.00Current price $ 3,875.00
Foster BLH6S/S, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH6S/S is a 303 stainless steel 3/4" coupl...
View full detailsOriginal price $ 4,845.00Original price $ 4,845.00 - Original price $ 4,845.00Original price $ 4,845.00Current price $ 3,875.00$ 3,875.00 - $ 3,875.00Current price $ 3,875.00Save 20% -
Original price $ 1,795.00Original price $ 1,795.00 - Original price $ 1,795.00Original price $ 1,795.00Current price $ 1,437.00$ 1,437.00 - $ 1,437.00Current price $ 1,437.00
Foster BLH6S12, 3/4" ISO-B Hydraulic Coupler x 1-1/16"-12 SAE, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH6S12 is a plated steel 3/4" coupler from...
View full detailsOriginal price $ 1,795.00Original price $ 1,795.00 - Original price $ 1,795.00Original price $ 1,795.00Current price $ 1,437.00$ 1,437.00 - $ 1,437.00Current price $ 1,437.00Save 20% -
Original price $ 3,347.00Original price $ 3,347.00 - Original price $ 3,347.00Original price $ 3,347.00Current price $ 2,678.00$ 2,678.00 - $ 2,678.00Current price $ 2,678.00
Foster BLH8B, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Ball Lock, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH8B is a brass 1" coupler from the ISO-B ...
View full detailsOriginal price $ 3,347.00Original price $ 3,347.00 - Original price $ 3,347.00Original price $ 3,347.00Current price $ 2,678.00$ 2,678.00 - $ 2,678.00Current price $ 2,678.00Save 20% -
Original price $ 2,166.00Original price $ 2,166.00 - Original price $ 2,166.00Original price $ 2,166.00Current price $ 1,733.00$ 1,733.00 - $ 1,733.00Current price $ 1,733.00
Foster BLH8S, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH8S is a plated steel 1" coupler from the...
View full detailsOriginal price $ 2,166.00Original price $ 2,166.00 - Original price $ 2,166.00Original price $ 2,166.00Current price $ 1,733.00$ 1,733.00 - $ 1,733.00Current price $ 1,733.00Save 20% -
Original price $ 7,137.00Original price $ 7,137.00 - Original price $ 7,137.00Original price $ 7,137.00Current price $ 5,709.00$ 5,709.00 - $ 5,709.00Current price $ 5,709.00
Foster BLH8S/S, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH8S/S is a 303 stainless steel 1" coupler...
View full detailsOriginal price $ 7,137.00Original price $ 7,137.00 - Original price $ 7,137.00Original price $ 7,137.00Current price $ 5,709.00$ 5,709.00 - $ 5,709.00Current price $ 5,709.00Save 20% -
Original price $ 2,434.00Original price $ 2,434.00 - Original price $ 2,434.00Original price $ 2,434.00Current price $ 1,948.00$ 1,948.00 - $ 1,948.00Current price $ 1,948.00
Foster BLH8S16, 1" ISO-B Hydraulic Coupler x 15/16"-12 SAE, ISO-B Series, Ball Lock, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster BLH8S16 is a plated steel 1" coupler from t...
View full detailsOriginal price $ 2,434.00Original price $ 2,434.00 - Original price $ 2,434.00Original price $ 2,434.00Current price $ 1,948.00$ 1,948.00 - $ 1,948.00Current price $ 1,948.00Save 20%
