Skip to content
☀️ Take an Additional 10% Off Your Entire Order with code GEARUP10 at checkout.
☀️ Additional 10% Off • GEARUP10

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.

Filters

Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€70,95 - €70,95
€70,95
€70,95 - €70,95
€70,95

Foster BLH3S/S, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 BLH3S/S is a 303 stainless 3/8" coupler i...

View full details
€70,95 - €70,95
€70,95
€70,95 - €70,95
€70,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€36,95 - €36,95
€36,95
€36,95 - €36,95
€36,95

Foster BLH3S8, 3/8" ISO-B Hydraulic Coupler x 3/4"-16 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 BLH3S8 is a steel 3/8" coupler in the FHK...

View full details
€36,95 - €36,95
€36,95
€36,95 - €36,95
€36,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€53,95 - €53,95
€53,95
€53,95 - €53,95
€53,95

Foster BLH4B, 1/2" ISO-B Hydraulic Coupler x 1/2" 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 BLH4B is a brass 1/2" coupler in the FHK ...

View full details
€53,95 - €53,95
€53,95
€53,95 - €53,95
€53,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€41,95 - €41,95
€41,95
€41,95 - €41,95
€41,95

Foster BLH4S, 1/2" ISO-B Hydraulic Coupler x 1/2" 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 BLH4S is a steel 1/2" coupler in the FHK ...

View full details
€41,95 - €41,95
€41,95
€41,95 - €41,95
€41,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€119,95 - €119,95
€119,95
€119,95 - €119,95
€119,95

Foster BLH4S/S, 1/2" ISO-B Hydraulic Coupler x 1/2" 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 BLH4S/S is a 303 stainless 1/2" coupler i...

View full details
€119,95 - €119,95
€119,95
€119,95 - €119,95
€119,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€50,95 - €50,95
€50,95
€50,95 - €50,95
€50,95

Foster BLH4S10, 1/2" ISO-B Hydraulic Coupler x 7/8"-14 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 BLH4S10 is a steel 1/2" coupler in the FH...

View full details
€50,95 - €50,95
€50,95
€50,95 - €50,95
€50,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€91,95 - €91,95
€91,95
€91,95 - €91,95
€91,95

Foster BLH6B, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 BLH6B is a brass 3/4" coupler in the FHK ...

View full details
€91,95 - €91,95
€91,95
€91,95 - €91,95
€91,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€70,95 - €70,95
€70,95
€70,95 - €70,95
€70,95

Foster BLH6S, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 BLH6S is a steel 3/4" coupler in the FHK ...

View full details
€70,95 - €70,95
€70,95
€70,95 - €70,95
€70,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€192,95 - €192,95
€192,95
€192,95 - €192,95
€192,95

Foster BLH6S/S, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 BLH6S/S is a 303 stainless 3/4" coupler i...

View full details
€192,95 - €192,95
€192,95
€192,95 - €192,95
€192,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€71,95 - €71,95
€71,95
€71,95 - €71,95
€71,95

Foster BLH6S12, 3/4" ISO-B Hydraulic Coupler x 1-1/16"-12 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 BLH6S12 is a steel 3/4" coupler in the FH...

View full details
€71,95 - €71,95
€71,95
€71,95 - €71,95
€71,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€132,95 - €132,95
€132,95
€132,95 - €132,95
€132,95

Foster BLH8B, 1" ISO-B Hydraulic Coupler x 1" 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 BLH8B is a brass 1" coupler in the FHK Se...

View full details
€132,95 - €132,95
€132,95
€132,95 - €132,95
€132,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€86,95 - €86,95
€86,95
€86,95 - €86,95
€86,95

Foster BLH8S, 1" ISO-B Hydraulic Coupler x 1" 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 BLH8S is a steel 1" coupler in the FHK Se...

View full details
€86,95 - €86,95
€86,95
€86,95 - €86,95
€86,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€283,95 - €283,95
€283,95
€283,95 - €283,95
€283,95

Foster BLH8S/S, 1" ISO-B Hydraulic Coupler x 1" 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 BLH8S/S is a 303 stainless 1" coupler in ...

View full details
€283,95 - €283,95
€283,95
€283,95 - €283,95
€283,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€96,95 - €96,95
€96,95
€96,95 - €96,95
€96,95

Foster BLH8S16, 1" ISO-B Hydraulic Coupler x 15/16"-12 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 BLH8S16 is a steel 1" coupler in the FHK ...

View full details
€96,95 - €96,95
€96,95
€96,95 - €96,95
€96,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€14,95 - €14,95
€14,95
€14,95 - €14,95
€14,95

Foster H1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1B is a brass 1/8" coupler in the FHK Se...

View full details
€14,95 - €14,95
€14,95
€14,95 - €14,95
€14,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€19,95 - €19,95
€19,95
€19,95 - €19,95
€19,95

Foster H1B-101, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Viton Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1B-101 is a brass 1/8" coupler in the FH...

View full details
€19,95 - €19,95
€19,95
€19,95 - €19,95
€19,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€19,95 - €19,95
€19,95
€19,95 - €19,95
€19,95

Foster H1B-103, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, EPDM Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1B-103 is a brass 1/8" coupler in the FH...

View full details
€19,95 - €19,95
€19,95
€19,95 - €19,95
€19,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€15,95 - €15,95
€15,95
€15,95 - €15,95
€15,95

Foster H1BLV, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Less Valve, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1BLV is a brass 1/8" coupler in the FHK ...

View full details
€15,95 - €15,95
€15,95
€15,95 - €15,95
€15,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€16,95 - €16,95
€16,95
€16,95 - €16,95
€16,95

Foster H1S, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1S is a steel 1/8" coupler in the FHK Se...

View full details
€16,95 - €16,95
€16,95
€16,95 - €16,95
€16,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€19,95 - €19,95
€19,95
€19,95 - €19,95
€19,95

Foster H1S-101, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Viton Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1S-101 is a steel 1/8" coupler in the FH...

View full details
€19,95 - €19,95
€19,95
€19,95 - €19,95
€19,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€47,95 - €47,95
€47,95
€47,95 - €47,95
€47,95

Foster H1S/S, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1S/S is a 303 stainless 1/8" coupler in ...

View full details
€47,95 - €47,95
€47,95
€47,95 - €47,95
€47,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€51,95 - €51,95
€51,95
€51,95 - €51,95
€51,95

Foster H1S/S-101, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1S/S-101 is a 303 stainless 1/8" coupler...

View full details
€51,95 - €51,95
€51,95
€51,95 - €51,95
€51,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€51,95 - €51,95
€51,95
€51,95 - €51,95
€51,95

Foster H1S/S-104, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Silicone Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1S/S-104 is a 303 stainless 1/8" coupler...

View full details
€51,95 - €51,95
€51,95
€51,95 - €51,95
€51,95
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
€19,95 - €19,95
€19,95
€19,95 - €19,95
€19,95

Foster H1S4, 1/8" ISO-B Hydraulic Coupler x 7/16"-20 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1S4 is a steel 1/8" coupler in the FHK S...

View full details
€19,95 - €19,95
€19,95
€19,95 - €19,95
€19,95

Request a Quote

Bulk and dealer pricing. Tell us what you need and we’ll reply within one business day.