Skip to content

Hydraulic Quick Couplers

Hydraulic quick couplers join high-pressure fluid lines with a secure, leak-free connection. This collection covers ISO-B, ISO-A, flush face, and specialty hydraulic couplers and plugs in steel, brass, and stainless. Filter by series, body size, thread, and material to match your hydraulic system.

Filters

Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 783.00
$ 783.00 - $ 783.00
$ 783.00
$ 626.00
$ 626.00 - $ 626.00
$ 626.00

Foster BLFHS4B, 1/2" Snap-Tite H Interchange Coupler x 1/2" Female NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS4B is a brass 1/2" coupler from the FH Series, whic...

View full details
$ 783.00
$ 783.00 - $ 783.00
$ 783.00
$ 626.00
$ 626.00 - $ 626.00
$ 626.00
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 %
$ 528.00
$ 528.00 - $ 528.00
$ 528.00
$ 424.00
$ 424.00 - $ 424.00
$ 424.00

Foster BLFHS4, 1/2" Snap-Tite H Interchange Coupler x 1/2" Female NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS4 is a zinc-plated steel 1/2" coupler from the FH S...

View full details
$ 528.00
$ 528.00 - $ 528.00
$ 528.00
$ 424.00
$ 424.00 - $ 424.00
$ 424.00
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 %
$ 870.00
$ 870.00 - $ 870.00
$ 870.00
$ 695.00
$ 695.00 - $ 695.00
$ 695.00

Foster BLFHS3M3B, 3/8" Snap-Tite H Interchange Coupler x 3/8" Male NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS3M3B is a brass 3/8" coupler from the FH Series, wh...

View full details
$ 870.00
$ 870.00 - $ 870.00
$ 870.00
$ 695.00
$ 695.00 - $ 695.00
$ 695.00
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 %
$ 1,471.00
$ 1,471.00 - $ 1,471.00
$ 1,471.00
$ 1,178.00
$ 1,178.00 - $ 1,178.00
$ 1,178.00

Foster BLFHS3M3, 3/8" Snap-Tite H Interchange Coupler x 3/8" Male NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS3M3 is a zinc-plated steel 3/8" coupler from the FH...

View full details
$ 1,471.00
$ 1,471.00 - $ 1,471.00
$ 1,471.00
$ 1,178.00
$ 1,178.00 - $ 1,178.00
$ 1,178.00
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 %
$ 1,310.00
$ 1,310.00 - $ 1,310.00
$ 1,310.00
$ 1,049.00
$ 1,049.00 - $ 1,049.00
$ 1,049.00

Foster BLFHS3F3, 3/8" Snap-Tite H Interchange Coupler x 3/8" Female NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS3F3 is a zinc-plated steel 3/8" coupler from the FH...

View full details
$ 1,310.00
$ 1,310.00 - $ 1,310.00
$ 1,310.00
$ 1,049.00
$ 1,049.00 - $ 1,049.00
$ 1,049.00
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 %
$ 467.00
$ 467.00 - $ 467.00
$ 467.00
$ 373.00
$ 373.00 - $ 373.00
$ 373.00

Foster BLFHS3, 3/8" Snap-Tite H Interchange Coupler x 3/8" Female NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS3 is a zinc-plated steel 3/8" coupler from the FH S...

View full details
$ 467.00
$ 467.00 - $ 467.00
$ 467.00
$ 373.00
$ 373.00 - $ 373.00
$ 373.00
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 %
$ 709.00
$ 709.00 - $ 709.00
$ 709.00
$ 568.00
$ 568.00 - $ 568.00
$ 568.00

Foster BLFHS2M2B, 1/4" Snap-Tite H Interchange Coupler x 1/4" Male NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS2M2B is a brass 1/4" coupler from the FH Series, wh...

View full details
$ 709.00
$ 709.00 - $ 709.00
$ 709.00
$ 568.00
$ 568.00 - $ 568.00
$ 568.00
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 %
$ 563.00
$ 563.00 - $ 563.00
$ 563.00
$ 450.00
$ 450.00 - $ 450.00
$ 450.00

Foster BLFHS2M2, 1/4" Snap-Tite H Interchange Coupler x 1/4" Male NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS2M2 is a zinc-plated steel 1/4" coupler from the FH...

View full details
$ 563.00
$ 563.00 - $ 563.00
$ 563.00
$ 450.00
$ 450.00 - $ 450.00
$ 450.00
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 %
$ 685.00
$ 685.00 - $ 685.00
$ 685.00
$ 549.00
$ 549.00 - $ 549.00
$ 549.00

Foster BLFHS2F2B, 1/4" Snap-Tite H Interchange Coupler x 1/4" Female NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS2F2B is a brass 1/4" coupler from the FH Series, wh...

View full details
$ 685.00
$ 685.00 - $ 685.00
$ 685.00
$ 549.00
$ 549.00 - $ 549.00
$ 549.00
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 %
$ 525.00
$ 525.00 - $ 525.00
$ 525.00
$ 420.00
$ 420.00 - $ 420.00
$ 420.00

Foster BLFHS2F2, 1/4" Snap-Tite H Interchange Coupler x 1/4" Female NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS2F2 is a zinc-plated steel 1/4" coupler from the FH...

View full details
$ 525.00
$ 525.00 - $ 525.00
$ 525.00
$ 420.00
$ 420.00 - $ 420.00
$ 420.00
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 %
$ 450.00
$ 450.00 - $ 450.00
$ 450.00
$ 359.00
$ 359.00 - $ 359.00
$ 359.00

Foster BLFHS2B, 1/4" Snap-Tite H Interchange Coupler x 1/4" Female NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS2B is a brass 1/4" coupler from the FH Series, whic...

View full details
$ 450.00
$ 450.00 - $ 450.00
$ 450.00
$ 359.00
$ 359.00 - $ 359.00
$ 359.00
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 %
$ 1,380.00
$ 1,380.00 - $ 1,380.00
$ 1,380.00
$ 1,103.00
$ 1,103.00 - $ 1,103.00
$ 1,103.00

Foster BL38FSS, 3/8" Straight-Thru Coupler x 3/8" Female NPT, FST Series, Ball Lock, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL38FSS is a 303 stainless 3/8" straight-...

View full details
$ 1,380.00
$ 1,380.00 - $ 1,380.00
$ 1,380.00
$ 1,103.00
$ 1,103.00 - $ 1,103.00
$ 1,103.00
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 %
$ 2,272.00
$ 2,272.00 - $ 2,272.00
$ 2,272.00
$ 1,817.00
$ 1,817.00 - $ 1,817.00
$ 1,817.00

Foster BL75FSS, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Ball Lock, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL75FSS is a 303 stainless 3/4" straight-...

View full details
$ 2,272.00
$ 2,272.00 - $ 2,272.00
$ 2,272.00
$ 1,817.00
$ 1,817.00 - $ 1,817.00
$ 1,817.00
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 %
$ 817.00
$ 817.00 - $ 817.00
$ 817.00
$ 654.00
$ 654.00 - $ 654.00
$ 654.00

Foster BL75FS, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL75FS is a brass 3/4" straight-thru coup...

View full details
$ 817.00
$ 817.00 - $ 817.00
$ 817.00
$ 654.00
$ 654.00 - $ 654.00
$ 654.00
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 %
$ 1,560.00
$ 1,560.00 - $ 1,560.00
$ 1,560.00
$ 1,248.00
$ 1,248.00 - $ 1,248.00
$ 1,248.00

Foster BL50FSS, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, Ball Lock, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL50FSS is a 303 stainless 1/2" straight-...

View full details
$ 1,560.00
$ 1,560.00 - $ 1,560.00
$ 1,560.00
$ 1,248.00
$ 1,248.00 - $ 1,248.00
$ 1,248.00
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 %
$ 539.00
$ 539.00 - $ 539.00
$ 539.00
$ 431.00
$ 431.00 - $ 431.00
$ 431.00

Foster BL50FS, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL50FS is a brass 1/2" straight-thru coup...

View full details
$ 539.00
$ 539.00 - $ 539.00
$ 539.00
$ 431.00
$ 431.00 - $ 431.00
$ 431.00
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 %
$ 417.00
$ 417.00 - $ 417.00
$ 417.00
$ 333.00
$ 333.00 - $ 333.00
$ 333.00

Foster BL38FS, 3/8" Straight-Thru Coupler x 3/8" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL38FS is a brass 3/8" straight-thru coup...

View full details
$ 417.00
$ 417.00 - $ 417.00
$ 417.00
$ 333.00
$ 333.00 - $ 333.00
$ 333.00
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 %
$ 1,281.00
$ 1,281.00 - $ 1,281.00
$ 1,281.00
$ 1,025.00
$ 1,025.00 - $ 1,025.00
$ 1,025.00

Foster BL25FSS, 1/4" Straight-Thru Coupler x 1/4" Female NPT, FST Series, Ball Lock, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL25FSS is a 303 stainless 1/4" straight-...

View full details
$ 1,281.00
$ 1,281.00 - $ 1,281.00
$ 1,281.00
$ 1,025.00
$ 1,025.00 - $ 1,025.00
$ 1,025.00
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 %
$ 359.00
$ 359.00 - $ 359.00
$ 359.00
$ 288.00
$ 288.00 - $ 288.00
$ 288.00

Foster BL25FS, 1/4" Straight-Thru Coupler x 1/4" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL25FS is a brass 1/4" straight-thru coup...

View full details
$ 359.00
$ 359.00 - $ 359.00
$ 359.00
$ 288.00
$ 288.00 - $ 288.00
$ 288.00
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 %
$ 5,249.00
$ 5,249.00 - $ 5,249.00
$ 5,249.00
$ 4,199.00
$ 4,199.00 - $ 4,199.00
$ 4,199.00

Foster BL150FS, 1-1/2" Straight-Thru Coupler x 1-1/2" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL150FS is a brass 1-1/2" straight-thru c...

View full details
$ 5,249.00
$ 5,249.00 - $ 5,249.00
$ 5,249.00
$ 4,199.00
$ 4,199.00 - $ 4,199.00
$ 4,199.00
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 %
$ 833.00
$ 833.00 - $ 833.00
$ 833.00
$ 666.00
$ 666.00 - $ 666.00
$ 666.00

Foster BL12FSS, 1/8" Straight-Thru Coupler x 1/8" Female NPT, FST Series, Ball Lock, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL12FSS is a 303 stainless 1/8" straight-...

View full details
$ 833.00
$ 833.00 - $ 833.00
$ 833.00
$ 666.00
$ 666.00 - $ 666.00
$ 666.00
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 %
$ 323.00
$ 323.00 - $ 323.00
$ 323.00
$ 258.00
$ 258.00 - $ 258.00
$ 258.00

Foster BL12FS, 1/8" Straight-Thru Coupler x 1/8" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL12FS is a brass 1/8" straight-thru coup...

View full details
$ 323.00
$ 323.00 - $ 323.00
$ 323.00
$ 258.00
$ 258.00 - $ 258.00
$ 258.00
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 %
$ 3,025.00
$ 3,025.00 - $ 3,025.00
$ 3,025.00
$ 2,420.00
$ 2,420.00 - $ 2,420.00
$ 2,420.00

Foster BL125FS, 1-1/4" Straight-Thru Coupler x 1-1/4" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL125FS is a brass 1-1/4" straight-thru c...

View full details
$ 3,025.00
$ 3,025.00 - $ 3,025.00
$ 3,025.00
$ 2,420.00
$ 2,420.00 - $ 2,420.00
$ 2,420.00
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 %
$ 3,289.00
$ 3,289.00 - $ 3,289.00
$ 3,289.00
$ 2,631.00
$ 2,631.00 - $ 2,631.00
$ 2,631.00

Foster BL100FSS, 1" Straight-Thru Coupler x 1" Female NPT, FST Series, Ball Lock, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL100FSS is a 303 stainless 1" straight-t...

View full details
$ 3,289.00
$ 3,289.00 - $ 3,289.00
$ 3,289.00
$ 2,631.00
$ 2,631.00 - $ 2,631.00
$ 2,631.00
Save 20% Save %

Request a Quote

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