Skip to content

Foster

Foster quick couplers set the standard in pneumatic and hydraulic connections. Part of the ZSI-Foster line, Foster couplers and plugs cover the full range of industrial interchanges and body sizes in steel, brass, and stainless construction. Built for reliable, repeatable connections in air and fluid systems. Shop the full Foster range below.

Filters

Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 512.00
$ 512.00 - $ 512.00
$ 512.00
$ 411.00
$ 411.00 - $ 411.00
$ 411.00

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...

View full details
$ 512.00
$ 512.00 - $ 512.00
$ 512.00
$ 411.00
$ 411.00 - $ 411.00
$ 411.00
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 %
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00

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...

View full details
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00
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 %
$ 289.00
$ 289.00 - $ 289.00
$ 289.00
$ 232.00
$ 232.00 - $ 232.00
$ 232.00

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...

View full details
$ 289.00
$ 289.00 - $ 289.00
$ 289.00
$ 232.00
$ 232.00 - $ 232.00
$ 232.00
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 %
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00

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...

View full details
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00
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 %
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00

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
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00
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 %
$ 289.00
$ 289.00 - $ 289.00
$ 289.00
$ 232.00
$ 232.00 - $ 232.00
$ 232.00

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
$ 289.00
$ 289.00 - $ 289.00
$ 289.00
$ 232.00
$ 232.00 - $ 232.00
$ 232.00
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 %
$ 289.00
$ 289.00 - $ 289.00
$ 289.00
$ 232.00
$ 232.00 - $ 232.00
$ 232.00

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
$ 289.00
$ 289.00 - $ 289.00
$ 289.00
$ 232.00
$ 232.00 - $ 232.00
$ 232.00
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 %
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
$ 197.00
$ 197.00 - $ 197.00
$ 197.00

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
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
$ 197.00
$ 197.00 - $ 197.00
$ 197.00
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 %
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
$ 197.00
$ 197.00 - $ 197.00
$ 197.00

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
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
$ 197.00
$ 197.00 - $ 197.00
$ 197.00
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 %
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00

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
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00
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 %
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
$ 197.00
$ 197.00 - $ 197.00
$ 197.00

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
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
$ 197.00
$ 197.00 - $ 197.00
$ 197.00
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 %
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
$ 197.00
$ 197.00 - $ 197.00
$ 197.00

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
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
$ 197.00
$ 197.00 - $ 197.00
$ 197.00
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 %
$ 178.00
$ 178.00 - $ 178.00
$ 178.00
$ 143.00
$ 143.00 - $ 143.00
$ 143.00

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
$ 178.00
$ 178.00 - $ 178.00
$ 178.00
$ 143.00
$ 143.00 - $ 143.00
$ 143.00
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 %
$ 134.00
$ 134.00 - $ 134.00
$ 134.00
$ 107.00
$ 107.00 - $ 107.00
$ 107.00

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
$ 134.00
$ 134.00 - $ 134.00
$ 134.00
$ 107.00
$ 107.00 - $ 107.00
$ 107.00
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 %
$ 168.00
$ 168.00 - $ 168.00
$ 168.00
$ 134.00
$ 134.00 - $ 134.00
$ 134.00

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
$ 168.00
$ 168.00 - $ 168.00
$ 168.00
$ 134.00
$ 134.00 - $ 134.00
$ 134.00
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 %
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00

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
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00
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 %
$ 157.00
$ 157.00 - $ 157.00
$ 157.00
$ 126.00
$ 126.00 - $ 126.00
$ 126.00

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
$ 157.00
$ 157.00 - $ 157.00
$ 157.00
$ 126.00
$ 126.00 - $ 126.00
$ 126.00
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 %
$ 134.00
$ 134.00 - $ 134.00
$ 134.00
$ 107.00
$ 107.00 - $ 107.00
$ 107.00

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
$ 134.00
$ 134.00 - $ 134.00
$ 134.00
$ 107.00
$ 107.00 - $ 107.00
$ 107.00
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 %
$ 112.00
$ 112.00 - $ 112.00
$ 112.00
$ 89.00
$ 89.00 - $ 89.00
$ 89.00

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
$ 112.00
$ 112.00 - $ 112.00
$ 112.00
$ 89.00
$ 89.00 - $ 89.00
$ 89.00
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 %
$ 626.00
$ 626.00 - $ 626.00
$ 626.00
$ 500.00
$ 500.00 - $ 500.00
$ 500.00

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...

View full details
$ 626.00
$ 626.00 - $ 626.00
$ 626.00
$ 500.00
$ 500.00 - $ 500.00
$ 500.00
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 %
$ 178.00
$ 178.00 - $ 178.00
$ 178.00
$ 143.00
$ 143.00 - $ 143.00
$ 143.00

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
$ 178.00
$ 178.00 - $ 178.00
$ 178.00
$ 143.00
$ 143.00 - $ 143.00
$ 143.00
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 %
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
$ 197.00
$ 197.00 - $ 197.00
$ 197.00

Foster FSS316-6404-08-08, 1/2" ORB (3/4"-16 thread) Female x 1/2" Male Pipe, 316 Stainless

The Foster FSS316-6404-08-08 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 1/2" ORB (3/4"-16 thread) Female x 1/2" Male Pipe. Machined fo...

View full details
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
$ 197.00
$ 197.00 - $ 197.00
$ 197.00
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 %
$ 312.00
$ 312.00 - $ 312.00
$ 312.00
$ 249.00
$ 249.00 - $ 249.00
$ 249.00

Foster FSS316-6404-10-08, 5/8" ORB (7/8"-14 thread) Female x 1/2" Male Pipe, 316 Stainless

The Foster FSS316-6404-10-08 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 5/8" ORB (7/8"-14 thread) Female x 1/2" Male Pipe. Machined fo...

View full details
$ 312.00
$ 312.00 - $ 312.00
$ 312.00
$ 249.00
$ 249.00 - $ 249.00
$ 249.00
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 %
$ 335.00
$ 335.00 - $ 335.00
$ 335.00
$ 269.00
$ 269.00 - $ 269.00
$ 269.00

Foster FSS316-6401-12-12, 3/4" ORB (1 1/16"-12 thread) Male x 3/4" Male Pipe, 316 Stainless

The Foster FSS316-6401-12-12 is a 316 stainless steel SAE O-Ring Boss (ORB) fitting: 3/4" ORB (1 1/16"-12 thread) Male x 3/4" Male Pipe. Machined f...

View full details
$ 335.00
$ 335.00 - $ 335.00
$ 335.00
$ 269.00
$ 269.00 - $ 269.00
$ 269.00
Save 20% Save %

Request a Quote

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