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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.

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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00

Foster FSS316-6405-12-08, 3/4" ORB (1 1/16"-12 thread) Male x 1/2" Female Pipe, 316 Stainless

The Foster FSS316-6405-12-08 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 3/4" ORB (1 1/16"-12 thread) Male x 1/2" Female Pipe. Machined...

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$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00
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 %
$ 507.00
$ 507.00 - $ 507.00
$ 507.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00

Foster FSS316-6405-14-12, 7/8" ORB (1 3/16"-12 thread) Male x 3/5" Female Pipe, 316 Stainless

The Foster FSS316-6405-14-12 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 7/8" ORB (1 3/16"-12 thread) Male x 3/5" Female Pipe. Machined...

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$ 507.00
$ 507.00 - $ 507.00
$ 507.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00
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 %
$ 507.00
$ 507.00 - $ 507.00
$ 507.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00

Foster FSS316-6405-14-08, 7/8" ORB (1 3/16"-12 thread) Male x 1/2" Female Pipe, 316 Stainless

The Foster FSS316-6405-14-08 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 7/8" ORB (1 3/16"-12 thread) Male x 1/2" Female Pipe. Machined...

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$ 507.00
$ 507.00 - $ 507.00
$ 507.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00
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 %
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00

Foster FSS316-6405-10-12, 5/8" ORB (7/8"-14 thread) Male x 3/4" Female Pipe, 316 Stainless

The Foster FSS316-6405-10-12 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 5/8" ORB (7/8"-14 thread) Male x 3/4" Female Pipe. Machined fo...

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$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00
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 %
$ 287.00
$ 287.00 - $ 287.00
$ 287.00
$ 230.00
$ 230.00 - $ 230.00
$ 230.00

Foster FSS316-6405-10-08, 5/8" ORB (7/8"-14 thread) Male x 1/2" Female Pipe, 316 Stainless

The Foster FSS316-6405-10-08 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 5/8" ORB (7/8"-14 thread) Male x 1/2" Female Pipe. Machined fo...

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$ 287.00
$ 287.00 - $ 287.00
$ 287.00
$ 230.00
$ 230.00 - $ 230.00
$ 230.00
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 %
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00

Foster FSS316-6405-12-04, 3/4" ORB (1 1/16"-12 thread) Male x 1/4" Female Pipe, 316 Stainless

The Foster FSS316-6405-12-04 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 3/4" ORB (1 1/16"-12 thread) Male x 1/4" Female Pipe. Machined...

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$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00
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 %
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00

Foster FSS316-6405-12-06, 3/4" ORB (1 1/16"-12 thread) Male x 3/8" Female Pipe, 316 Stainless

The Foster FSS316-6405-12-06 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 3/4" ORB (1 1/16"-12 thread) Male x 3/8" Female Pipe. Machined...

View full details
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00
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 %
$ 287.00
$ 287.00 - $ 287.00
$ 287.00
$ 230.00
$ 230.00 - $ 230.00
$ 230.00

Foster FSS316-6405-10-06, 5/8" ORB (7/8"-14 thread) Male x 3/8" Female Pipe, 316 Stainless

The Foster FSS316-6405-10-06 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 5/8" ORB (7/8"-14 thread) Male x 3/8" Female Pipe. Machined fo...

View full details
$ 287.00
$ 287.00 - $ 287.00
$ 287.00
$ 230.00
$ 230.00 - $ 230.00
$ 230.00
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 %
$ 287.00
$ 287.00 - $ 287.00
$ 287.00
$ 230.00
$ 230.00 - $ 230.00
$ 230.00

Foster FSS316-6405-10-04, 5/8" ORB (7/8"-14 thread) Male x 1/4" Female Pipe, 316 Stainless

The Foster FSS316-6405-10-04 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 5/8" ORB (7/8"-14 thread) Male x 1/4" Female Pipe. Machined fo...

View full details
$ 287.00
$ 287.00 - $ 287.00
$ 287.00
$ 230.00
$ 230.00 - $ 230.00
$ 230.00
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 %
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00

Foster FSS316-6405-08-08, 1/2" ORB (3/4"-16 thread) Male x 1/2" Female Pipe, 316 Stainless

The Foster FSS316-6405-08-08 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 1/2" ORB (3/4"-16 thread) Male x 1/2" Female Pipe. Machined fo...

View full details
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00
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 %
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00

Foster FSS316-6405-08-04, 1/2" ORB (3/4"-16 thread) Male x 1/4" Female Pipe, 316 Stainless

The Foster FSS316-6405-08-04 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 1/2" ORB (3/4"-16 thread) Male x 1/4" Female Pipe. Machined fo...

View full details
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00
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 %
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00

Foster FSS316-6405-08-12, 1/2" ORB (3/4"-16 thread) Male x 3/4" Female Pipe, 316 Stainless

The Foster FSS316-6405-08-12 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 1/2" ORB (3/4"-16 thread) Male x 3/4" Female Pipe. Machined fo...

View full details
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00
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 %
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00

Foster FSS316-6405-08-06, 1/2" ORB (3/4"-16 thread) Male x 3/8" Female Pipe, 316 Stainless

The Foster FSS316-6405-08-06 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 1/2" ORB (3/4"-16 thread) Male x 3/8" Female Pipe. Machined fo...

View full details
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00
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 %
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00

Foster FSS316-6405-08-02, 1/2" ORB (3/4"-16 thread) Male x 1/8" Female Pipe, 316 Stainless

The Foster FSS316-6405-08-02 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 1/2" ORB (3/4"-16 thread) Male x 1/8" Female Pipe. Machined fo...

View full details
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00
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 %
$ 176.00
$ 176.00 - $ 176.00
$ 176.00
$ 142.00
$ 142.00 - $ 142.00
$ 142.00

Foster FSS316-6405-06-06, 3/8" ORB (9/16"-18 thread) Male x 3/8" Female Pipe, 316 Stainless

The Foster FSS316-6405-06-06 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 3/8" ORB (9/16"-18 thread) Male x 3/8" Female Pipe. Machined f...

View full details
$ 176.00
$ 176.00 - $ 176.00
$ 176.00
$ 142.00
$ 142.00 - $ 142.00
$ 142.00
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 %
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00

Foster FSS316-6405-06-08, 3/8" ORB (9/16"-18 thread) Male x 1/2" Female Pipe, 316 Stainless

The Foster FSS316-6405-06-08 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 3/8" ORB (9/16"-18 thread) Male x 1/2" Female Pipe. Machined f...

View full details
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00
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 %
$ 133.00
$ 133.00 - $ 133.00
$ 133.00
$ 105.00
$ 105.00 - $ 105.00
$ 105.00

Foster FSS316-6405-04-04, 1/4" ORB (7/16"-20 thread) Male x 1/4" Female Pipe, 316 Stainless

The Foster FSS316-6405-04-04 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 1/4" ORB (7/16"-20 thread) Male x 1/4" Female Pipe. Machined f...

View full details
$ 133.00
$ 133.00 - $ 133.00
$ 133.00
$ 105.00
$ 105.00 - $ 105.00
$ 105.00
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 %
$ 166.00
$ 166.00 - $ 166.00
$ 166.00
$ 133.00
$ 133.00 - $ 133.00
$ 133.00

Foster FSS316-6405-06-04, 3/8" ORB (9/16"-18 thread) Male x 1/4" Female Pipe, 316 Stainless

The Foster FSS316-6405-06-04 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 3/8" ORB (9/16"-18 thread) Male x 1/4" Female Pipe. Machined f...

View full details
$ 166.00
$ 166.00 - $ 166.00
$ 166.00
$ 133.00
$ 133.00 - $ 133.00
$ 133.00
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 %
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00

Foster FSS316-6404-12-12, 3/4" ORB (1 1/16"-12 thread) Female x 3/4" Male Pipe, 316 Stainless

The Foster FSS316-6404-12-12 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 3/4" ORB (1 1/16"-12 thread) Female x 3/4" Male Pipe. Machined...

View full details
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00
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 %
$ 155.00
$ 155.00 - $ 155.00
$ 155.00
$ 124.00
$ 124.00 - $ 124.00
$ 124.00

Foster FSS316-6405-05-04, 5/16" ORB (1/2"-20 thread) Male x 1/4" Female Pipe, 316 Stainless

The Foster FSS316-6405-05-04 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 5/16" ORB (1/2"-20 thread) Male x 1/4" Female Pipe. Machined f...

View full details
$ 155.00
$ 155.00 - $ 155.00
$ 155.00
$ 124.00
$ 124.00 - $ 124.00
$ 124.00
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 %
$ 133.00
$ 133.00 - $ 133.00
$ 133.00
$ 105.00
$ 105.00 - $ 105.00
$ 105.00

Foster FSS316-6405-04-02, 1/4" ORB (7/16"-20 thread) Male x 1/8" Female Pipe, 316 Stainless

The Foster FSS316-6405-04-02 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 1/4" ORB (7/16"-20 thread) Male x 1/8" Female Pipe. Machined f...

View full details
$ 133.00
$ 133.00 - $ 133.00
$ 133.00
$ 105.00
$ 105.00 - $ 105.00
$ 105.00
Save 21% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 21% Save %
$ 111.00
$ 111.00 - $ 111.00
$ 111.00
$ 88.00
$ 88.00 - $ 88.00
$ 88.00

Foster FSS316-6405-02-02, 1/8" ORB (5/16"-24 thread) Male x 1/8" Female Pipe, 316 Stainless

The Foster FSS316-6405-02-02 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 1/8" ORB (5/16"-24 thread) Male x 1/8" Female Pipe. Machined f...

View full details
$ 111.00
$ 111.00 - $ 111.00
$ 111.00
$ 88.00
$ 88.00 - $ 88.00
$ 88.00
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 %
$ 619.00
$ 619.00 - $ 619.00
$ 619.00
$ 495.00
$ 495.00 - $ 495.00
$ 495.00

Foster FSS316-6404-16-16, 1" ORB (1 5/16"-12 thread) Female x 1" Male Pipe, 316 Stainless

The Foster FSS316-6404-16-16 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 1" ORB (1 5/16"-12 thread) Female x 1" Male Pipe. Machined for...

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$ 619.00
$ 619.00 - $ 619.00
$ 619.00
$ 495.00
$ 495.00 - $ 495.00
$ 495.00
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 %
$ 176.00
$ 176.00 - $ 176.00
$ 176.00
$ 142.00
$ 142.00 - $ 142.00
$ 142.00

Foster FSS316-6404-06-06, 3/8" ORB (9/16"-18 thread) Female x 3/8" Male Pipe, 316 Stainless

The Foster FSS316-6404-06-06 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 3/8" ORB (9/16"-18 thread) Female x 3/8" Male Pipe. Machined f...

View full details
$ 176.00
$ 176.00 - $ 176.00
$ 176.00
$ 142.00
$ 142.00 - $ 142.00
$ 142.00
Save 19% Save %

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