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 $ 520.00Original price $ 520.00 - Original price $ 520.00Original price $ 520.00Current price $ 415.00$ 415.00 - $ 415.00Current price $ 415.00
Foster H2S6, 1/4" ISO-B Hydraulic Coupler x 9/16"-18 SAE, ISO-B Series, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2S6 is a plated steel 1/4" coupler from th...
View full detailsOriginal price $ 520.00Original price $ 520.00 - Original price $ 520.00Original price $ 520.00Current price $ 415.00$ 415.00 - $ 415.00Current price $ 415.00Save 20% -
Original price $ 671.00Original price $ 671.00 - Original price $ 671.00Original price $ 671.00Current price $ 538.00$ 538.00 - $ 538.00Current price $ 538.00
Foster H3B, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3B is a brass 3/8" coupler from the ISO-B ...
View full detailsOriginal price $ 671.00Original price $ 671.00 - Original price $ 671.00Original price $ 671.00Current price $ 538.00$ 538.00 - $ 538.00Current price $ 538.00Save 20% -
Original price $ 793.00Original price $ 793.00 - Original price $ 793.00Original price $ 793.00Current price $ 633.00$ 633.00 - $ 633.00Current price $ 633.00
Foster H3B-101, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Viton Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3B-101 is a brass 3/8" coupler from the IS...
View full detailsOriginal price $ 793.00Original price $ 793.00 - Original price $ 793.00Original price $ 793.00Current price $ 633.00$ 633.00 - $ 633.00Current price $ 633.00Save 20% -
Original price $ 805.00Original price $ 805.00 - Original price $ 805.00Original price $ 805.00Current price $ 646.00$ 646.00 - $ 646.00Current price $ 646.00
Foster H3B-102, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Neoprene Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3B-102 is a brass 3/8" coupler from the IS...
View full detailsOriginal price $ 805.00Original price $ 805.00 - Original price $ 805.00Original price $ 805.00Current price $ 646.00$ 646.00 - $ 646.00Current price $ 646.00Save 20% -
Original price $ 772.00Original price $ 772.00 - Original price $ 772.00Original price $ 772.00Current price $ 617.00$ 617.00 - $ 617.00Current price $ 617.00
Foster H3B-103, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, EPDM Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3B-103 is a brass 3/8" coupler from the IS...
View full detailsOriginal price $ 772.00Original price $ 772.00 - Original price $ 772.00Original price $ 772.00Current price $ 617.00$ 617.00 - $ 617.00Current price $ 617.00Save 20% -
Original price $ 821.00Original price $ 821.00 - Original price $ 821.00Original price $ 821.00Current price $ 657.00$ 657.00 - $ 657.00Current price $ 657.00
Foster H3B-104, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Silicone Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3B-104 is a brass 3/8" coupler from the IS...
View full detailsOriginal price $ 821.00Original price $ 821.00 - Original price $ 821.00Original price $ 821.00Current price $ 657.00$ 657.00 - $ 657.00Current price $ 657.00Save 20% -
Original price $ 688.00Original price $ 688.00 - Original price $ 688.00Original price $ 688.00Current price $ 552.00$ 552.00 - $ 552.00Current price $ 552.00
Foster H3S, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3S is a plated steel 3/8" coupler from the...
View full detailsOriginal price $ 688.00Original price $ 688.00 - Original price $ 688.00Original price $ 688.00Current price $ 552.00$ 552.00 - $ 552.00Current price $ 552.00Save 20% -
Original price $ 791.00Original price $ 791.00 - Original price $ 791.00Original price $ 791.00Current price $ 633.00$ 633.00 - $ 633.00Current price $ 633.00
Foster H3S-101, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Viton Seal, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3S-101 is a plated steel 3/8" coupler from...
View full detailsOriginal price $ 791.00Original price $ 791.00 - Original price $ 791.00Original price $ 791.00Current price $ 633.00$ 633.00 - $ 633.00Current price $ 633.00Save 20% -
Original price $ 800.00Original price $ 800.00 - Original price $ 800.00Original price $ 800.00Current price $ 641.00$ 641.00 - $ 641.00Current price $ 641.00
Foster H3S-102, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Neoprene Seal, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3S-102 is a plated steel 3/8" coupler from...
View full detailsOriginal price $ 800.00Original price $ 800.00 - Original price $ 800.00Original price $ 800.00Current price $ 641.00$ 641.00 - $ 641.00Current price $ 641.00Save 20% -
Original price $ 770.00Original price $ 770.00 - Original price $ 770.00Original price $ 770.00Current price $ 616.00$ 616.00 - $ 616.00Current price $ 616.00
Foster H3S-103, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, EPDM Seal, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3S-103 is a plated steel 3/8" coupler from...
View full detailsOriginal price $ 770.00Original price $ 770.00 - Original price $ 770.00Original price $ 770.00Current price $ 616.00$ 616.00 - $ 616.00Current price $ 616.00Save 20% -
Original price $ 805.00Original price $ 805.00 - Original price $ 805.00Original price $ 805.00Current price $ 646.00$ 646.00 - $ 646.00Current price $ 646.00
Foster H3S-104, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Silicone Seal, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3S-104 is a plated steel 3/8" coupler from...
View full detailsOriginal price $ 805.00Original price $ 805.00 - Original price $ 805.00Original price $ 805.00Current price $ 646.00$ 646.00 - $ 646.00Current price $ 646.00Save 20% -
Original price $ 1,598.00Original price $ 1,598.00 - Original price $ 1,598.00Original price $ 1,598.00Current price $ 1,279.00$ 1,279.00 - $ 1,279.00Current price $ 1,279.00
Foster H3S/S, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3S/S is a 303 stainless steel 3/8" coupler...
View full detailsOriginal price $ 1,598.00Original price $ 1,598.00 - Original price $ 1,598.00Original price $ 1,598.00Current price $ 1,279.00$ 1,279.00 - $ 1,279.00Current price $ 1,279.00Save 20% -
Original price $ 1,694.00Original price $ 1,694.00 - Original price $ 1,694.00Original price $ 1,694.00Current price $ 1,355.00$ 1,355.00 - $ 1,355.00Current price $ 1,355.00
Foster H3S/S-101, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3S/S-101 is a 303 stainless steel 3/8" cou...
View full detailsOriginal price $ 1,694.00Original price $ 1,694.00 - Original price $ 1,694.00Original price $ 1,694.00Current price $ 1,355.00$ 1,355.00 - $ 1,355.00Current price $ 1,355.00Save 20% -
Original price $ 797.00Original price $ 797.00 - Original price $ 797.00Original price $ 797.00Current price $ 637.00$ 637.00 - $ 637.00Current price $ 637.00
Foster H3S8, 3/8" ISO-B Hydraulic Coupler x 3/4"-16 SAE, ISO-B Series, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H3S8 is a plated steel 3/8" coupler from th...
View full detailsOriginal price $ 797.00Original price $ 797.00 - Original price $ 797.00Original price $ 797.00Current price $ 637.00$ 637.00 - $ 637.00Current price $ 637.00Save 20% -
Original price $ 1,132.00Original price $ 1,132.00 - Original price $ 1,132.00Original price $ 1,132.00Current price $ 905.00$ 905.00 - $ 905.00Current price $ 905.00
Foster H4B, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4B is a brass 1/2" coupler from the ISO-B ...
View full detailsOriginal price $ 1,132.00Original price $ 1,132.00 - Original price $ 1,132.00Original price $ 1,132.00Current price $ 905.00$ 905.00 - $ 905.00Current price $ 905.00Save 20% -
Original price $ 1,352.00Original price $ 1,352.00 - Original price $ 1,352.00Original price $ 1,352.00Current price $ 1,082.00$ 1,082.00 - $ 1,082.00Current price $ 1,082.00
Foster H4B-101, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Viton Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4B-101 is a brass 1/2" coupler from the IS...
View full detailsOriginal price $ 1,352.00Original price $ 1,352.00 - Original price $ 1,352.00Original price $ 1,352.00Current price $ 1,082.00$ 1,082.00 - $ 1,082.00Current price $ 1,082.00Save 20% -
Original price $ 1,268.00Original price $ 1,268.00 - Original price $ 1,268.00Original price $ 1,268.00Current price $ 1,015.00$ 1,015.00 - $ 1,015.00Current price $ 1,015.00
Foster H4B-102, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Neoprene Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4B-102 is a brass 1/2" coupler from the IS...
View full detailsOriginal price $ 1,268.00Original price $ 1,268.00 - Original price $ 1,268.00Original price $ 1,268.00Current price $ 1,015.00$ 1,015.00 - $ 1,015.00Current price $ 1,015.00Save 20% -
Original price $ 1,283.00Original price $ 1,283.00 - Original price $ 1,283.00Original price $ 1,283.00Current price $ 1,027.00$ 1,027.00 - $ 1,027.00Current price $ 1,027.00
Foster H4B-103, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, EPDM Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4B-103 is a brass 1/2" coupler from the IS...
View full detailsOriginal price $ 1,283.00Original price $ 1,283.00 - Original price $ 1,283.00Original price $ 1,283.00Current price $ 1,027.00$ 1,027.00 - $ 1,027.00Current price $ 1,027.00Save 20% -
Original price $ 887.00Original price $ 887.00 - Original price $ 887.00Original price $ 887.00Current price $ 710.00$ 710.00 - $ 710.00Current price $ 710.00
Foster H4S, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4S is a plated steel 1/2" coupler from the...
View full detailsOriginal price $ 887.00Original price $ 887.00 - Original price $ 887.00Original price $ 887.00Current price $ 710.00$ 710.00 - $ 710.00Current price $ 710.00Save 20% -
Original price $ 1,029.00Original price $ 1,029.00 - Original price $ 1,029.00Original price $ 1,029.00Current price $ 823.00$ 823.00 - $ 823.00Current price $ 823.00
Foster H4S-101, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Viton Seal, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4S-101 is a plated steel 1/2" coupler from...
View full detailsOriginal price $ 1,029.00Original price $ 1,029.00 - Original price $ 1,029.00Original price $ 1,029.00Current price $ 823.00$ 823.00 - $ 823.00Current price $ 823.00Save 20% -
Original price $ 993.00Original price $ 993.00 - Original price $ 993.00Original price $ 993.00Current price $ 795.00$ 795.00 - $ 795.00Current price $ 795.00
Foster H4S-103, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, EPDM Seal, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4S-103 is a plated steel 1/2" coupler from...
View full detailsOriginal price $ 993.00Original price $ 993.00 - Original price $ 993.00Original price $ 993.00Current price $ 795.00$ 795.00 - $ 795.00Current price $ 795.00Save 20% -
Original price $ 2,811.00Original price $ 2,811.00 - Original price $ 2,811.00Original price $ 2,811.00Current price $ 2,249.00$ 2,249.00 - $ 2,249.00Current price $ 2,249.00
Foster H4S/S, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4S/S is a 303 stainless steel 1/2" coupler...
View full detailsOriginal price $ 2,811.00Original price $ 2,811.00 - Original price $ 2,811.00Original price $ 2,811.00Current price $ 2,249.00$ 2,249.00 - $ 2,249.00Current price $ 2,249.00Save 20% -
Original price $ 2,914.00Original price $ 2,914.00 - Original price $ 2,914.00Original price $ 2,914.00Current price $ 2,331.00$ 2,331.00 - $ 2,331.00Current price $ 2,331.00
Foster H4S/S-101, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4S/S-101 is a 303 stainless steel 1/2" cou...
View full detailsOriginal price $ 2,914.00Original price $ 2,914.00 - Original price $ 2,914.00Original price $ 2,914.00Current price $ 2,331.00$ 2,331.00 - $ 2,331.00Current price $ 2,331.00Save 20% -
Original price $ 2,955.00Original price $ 2,955.00 - Original price $ 2,955.00Original price $ 2,955.00Current price $ 2,364.00$ 2,364.00 - $ 2,364.00Current price $ 2,364.00
Foster H4S/S-103, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4S/S-103 is a 303 stainless steel 1/2" cou...
View full detailsOriginal price $ 2,955.00Original price $ 2,955.00 - Original price $ 2,955.00Original price $ 2,955.00Current price $ 2,364.00$ 2,364.00 - $ 2,364.00Current price $ 2,364.00Save 20%
