Skip to content

Foster FF Plus Series Couplers

Foster FF Plus Series flat-face hydraulic quick couplers and plugs — the upgraded ISO 16028 flush-face line. The flat-face design minimizes fluid spillage and air inclusion at connection, with bidirectional flow and an optional Connect-Under-Pressure design. Offered in nickel-plated steel and 316 stainless, salt-spray tested to 1,200 hours. Body sizes 1/4" to 1-1/2", NPT and SAE ORB threads.

Filters

Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 76.00
$ 76.00 - $ 76.00
$ 76.00
$ 61.00
$ 61.00 - $ 61.00
$ 61.00

Foster 12FFPDC, 1/2" FF Plus Plug Dust Cap, FF Plus Series, PVC

Keep your 1/2" FF Plus flat-face couplers clean and protected. The Foster 12FFPDC PVC dust cap shields the flat sealing face from dirt and debris w...

View full details
$ 76.00
$ 76.00 - $ 76.00
$ 76.00
$ 61.00
$ 61.00 - $ 61.00
$ 61.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 18% Save %
$ 72.00
$ 72.00 - $ 72.00
$ 72.00
$ 59.00
$ 59.00 - $ 59.00
$ 59.00

Foster 12FFSDC, 1/2" FF Plus Socket Dust Cap, FF Plus Series, PVC

Keep your 1/2" FF Plus flat-face couplers clean and protected. The Foster 12FFSDC PVC dust cap shields the flat sealing face from dirt and debris w...

View full details
$ 72.00
$ 72.00 - $ 72.00
$ 72.00
$ 59.00
$ 59.00 - $ 59.00
$ 59.00
Save 18% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 81.00
$ 81.00 - $ 81.00
$ 81.00
$ 65.00
$ 65.00 - $ 65.00
$ 65.00

Foster 16FFPDC, 5/8" FF Plus Plug Dust Cap, FF Plus Series, PVC

Keep your 5/8" FF Plus flat-face couplers clean and protected. The Foster 16FFPDC PVC dust cap shields the flat sealing face from dirt and debris w...

View full details
$ 81.00
$ 81.00 - $ 81.00
$ 81.00
$ 65.00
$ 65.00 - $ 65.00
$ 65.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 18% Save %
$ 77.00
$ 77.00 - $ 77.00
$ 77.00
$ 63.00
$ 63.00 - $ 63.00
$ 63.00

Foster 16FFSDC, 5/8" FF Plus Socket Dust Cap, FF Plus Series, PVC

Keep your 5/8" FF Plus flat-face couplers clean and protected. The Foster 16FFSDC PVC dust cap shields the flat sealing face from dirt and debris w...

View full details
$ 77.00
$ 77.00 - $ 77.00
$ 77.00
$ 63.00
$ 63.00 - $ 63.00
$ 63.00
Save 18% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 22% Save %
$ 85.00
$ 85.00 - $ 85.00
$ 85.00
$ 66.00
$ 66.00 - $ 66.00
$ 66.00

Foster 19FFPDC, 3/4" FF Plus Plug Dust Cap, FF Plus Series, PVC

Keep your 3/4" FF Plus flat-face couplers clean and protected. The Foster 19FFPDC PVC dust cap shields the flat sealing face from dirt and debris w...

View full details
$ 85.00
$ 85.00 - $ 85.00
$ 85.00
$ 66.00
$ 66.00 - $ 66.00
$ 66.00
Save 22% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 81.00
$ 81.00 - $ 81.00
$ 81.00
$ 65.00
$ 65.00 - $ 65.00
$ 65.00

Foster 19FFSDC, 3/4" FF Plus Socket Dust Cap, FF Plus Series, PVC

Keep your 3/4" FF Plus flat-face couplers clean and protected. The Foster 19FFSDC PVC dust cap shields the flat sealing face from dirt and debris w...

View full details
$ 81.00
$ 81.00 - $ 81.00
$ 81.00
$ 65.00
$ 65.00 - $ 65.00
$ 65.00
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 %
$ 127.00
$ 127.00 - $ 127.00
$ 127.00
$ 101.00
$ 101.00 - $ 101.00
$ 101.00

Foster 25FFPDC, 1" FF Plus Plug Dust Cap, FF Plus Series, PVC

Keep your 1" FF Plus flat-face couplers clean and protected. The Foster 25FFPDC PVC dust cap shields the flat sealing face from dirt and debris whe...

View full details
$ 127.00
$ 127.00 - $ 127.00
$ 127.00
$ 101.00
$ 101.00 - $ 101.00
$ 101.00
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 %
$ 121.00
$ 121.00 - $ 121.00
$ 121.00
$ 98.00
$ 98.00 - $ 98.00
$ 98.00

Foster 25FFSDC, 1" FF Plus Socket Dust Cap, FF Plus Series, PVC

Keep your 1" FF Plus flat-face couplers clean and protected. The Foster 25FFSDC PVC dust cap shields the flat sealing face from dirt and debris whe...

View full details
$ 121.00
$ 121.00 - $ 121.00
$ 121.00
$ 98.00
$ 98.00 - $ 98.00
$ 98.00
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 %
$ 46.00
$ 46.00 - $ 46.00
$ 46.00
$ 37.00
$ 37.00 - $ 37.00
$ 37.00

Foster 6FFPDC, 1/4" FF Plus Plug Dust Cap, FF Plus Series, PVC

Keep your 1/4" FF Plus flat-face couplers clean and protected. The Foster 6FFPDC PVC dust cap shields the flat sealing face from dirt and debris wh...

View full details
$ 46.00
$ 46.00 - $ 46.00
$ 46.00
$ 37.00
$ 37.00 - $ 37.00
$ 37.00
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 %
$ 44.00
$ 44.00 - $ 44.00
$ 44.00
$ 35.00
$ 35.00 - $ 35.00
$ 35.00

Foster 6FFSDC, 1/4" FF Plus Socket Dust Cap, FF Plus Series, PVC

Keep your 1/4" FF Plus flat-face couplers clean and protected. The Foster 6FFSDC PVC dust cap shields the flat sealing face from dirt and debris wh...

View full details
$ 44.00
$ 44.00 - $ 44.00
$ 44.00
$ 35.00
$ 35.00 - $ 35.00
$ 35.00
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 %
$ 2,355.00
$ 2,355.00 - $ 2,355.00
$ 2,355.00
$ 1,886.00
$ 1,886.00 - $ 1,886.00
$ 1,886.00

Foster FF10CUPP-06, 3/8" Flat Face Connect-Under-Pressure Hydraulic Plug x 3/8" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10CUPP-06 is a nickel-plated steel 3/8" plug from...

View full details
$ 2,355.00
$ 2,355.00 - $ 2,355.00
$ 2,355.00
$ 1,886.00
$ 1,886.00 - $ 1,886.00
$ 1,886.00
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 %
$ 2,355.00
$ 2,355.00 - $ 2,355.00
$ 2,355.00
$ 1,886.00
$ 1,886.00 - $ 1,886.00
$ 1,886.00

Foster FF10CUPP-08, 3/8" Flat Face Connect-Under-Pressure Hydraulic Plug x 1/2" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10CUPP-08 is a nickel-plated steel 3/8" plug from...

View full details
$ 2,355.00
$ 2,355.00 - $ 2,355.00
$ 2,355.00
$ 1,886.00
$ 1,886.00 - $ 1,886.00
$ 1,886.00
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 %
$ 400.00
$ 400.00 - $ 400.00
$ 400.00
$ 319.00
$ 319.00 - $ 319.00
$ 319.00

Foster FF10P-06, 3/8" Flat Face Hydraulic Plug x 3/8" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10P-06 is a nickel-plated steel 3/8" plug from th...

View full details
$ 400.00
$ 400.00 - $ 400.00
$ 400.00
$ 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 %
$ 5,055.00
$ 5,055.00 - $ 5,055.00
$ 5,055.00
$ 4,045.00
$ 4,045.00 - $ 4,045.00
$ 4,045.00

Foster FF10P-06SS, 3/8" Flat Face Hydraulic Plug x 3/8" Female NPT, FF Plus Series, 316 Stainless Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10P-06SS is a 316 stainless steel 3/8" plug from ...

View full details
$ 5,055.00
$ 5,055.00 - $ 5,055.00
$ 5,055.00
$ 4,045.00
$ 4,045.00 - $ 4,045.00
$ 4,045.00
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 %
$ 481.00
$ 481.00 - $ 481.00
$ 481.00
$ 385.00
$ 385.00 - $ 385.00
$ 385.00

Foster FF10P-08, 3/8" Flat Face Hydraulic Plug x 1/2" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10P-08 is a nickel-plated steel 3/8" plug from th...

View full details
$ 481.00
$ 481.00 - $ 481.00
$ 481.00
$ 385.00
$ 385.00 - $ 385.00
$ 385.00
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 %
$ 5,778.00
$ 5,778.00 - $ 5,778.00
$ 5,778.00
$ 4,622.00
$ 4,622.00 - $ 4,622.00
$ 4,622.00

Foster FF10P-08SS, 3/8" Flat Face Hydraulic Plug x 1/2" Female NPT, FF Plus Series, 316 Stainless Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10P-08SS is a 316 stainless steel 3/8" plug from ...

View full details
$ 5,778.00
$ 5,778.00 - $ 5,778.00
$ 5,778.00
$ 4,622.00
$ 4,622.00 - $ 4,622.00
$ 4,622.00
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 %
$ 598.00
$ 598.00 - $ 598.00
$ 598.00
$ 479.00
$ 479.00 - $ 479.00
$ 479.00

Foster FF10P-75ORB, 3/8" Flat Face Hydraulic Plug x 3/4"-16 ORB, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10P-75ORB is a nickel-plated steel 3/8" plug from...

View full details
$ 598.00
$ 598.00 - $ 598.00
$ 598.00
$ 479.00
$ 479.00 - $ 479.00
$ 479.00
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 %
$ 1,103.00
$ 1,103.00 - $ 1,103.00
$ 1,103.00
$ 883.00
$ 883.00 - $ 883.00
$ 883.00

Foster FF10S-06, 3/8" Flat Face Hydraulic Coupler x 3/8" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10S-06 is a nickel-plated steel 3/8" coupler from...

View full details
$ 1,103.00
$ 1,103.00 - $ 1,103.00
$ 1,103.00
$ 883.00
$ 883.00 - $ 883.00
$ 883.00
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 %
$ 8,305.00
$ 8,305.00 - $ 8,305.00
$ 8,305.00
$ 6,644.00
$ 6,644.00 - $ 6,644.00
$ 6,644.00

Foster FF10S-06SS, 3/8" Flat Face Hydraulic Coupler x 3/8" Female NPT, FF Plus Series, 316 Stainless Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10S-06SS is a 316 stainless steel 3/8" coupler fr...

View full details
$ 8,305.00
$ 8,305.00 - $ 8,305.00
$ 8,305.00
$ 6,644.00
$ 6,644.00 - $ 6,644.00
$ 6,644.00
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 %
$ 1,082.00
$ 1,082.00 - $ 1,082.00
$ 1,082.00
$ 866.00
$ 866.00 - $ 866.00
$ 866.00

Foster FF10S-08, 3/8" Flat Face Hydraulic Coupler x 1/2" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10S-08 is a nickel-plated steel 3/8" coupler from...

View full details
$ 1,082.00
$ 1,082.00 - $ 1,082.00
$ 1,082.00
$ 866.00
$ 866.00 - $ 866.00
$ 866.00
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 %
$ 9,026.00
$ 9,026.00 - $ 9,026.00
$ 9,026.00
$ 7,221.00
$ 7,221.00 - $ 7,221.00
$ 7,221.00

Foster FF10S-08SS, 3/8" Flat Face Hydraulic Coupler x 1/2" Female NPT, FF Plus Series, 316 Stainless Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10S-08SS is a 316 stainless steel 3/8" coupler fr...

View full details
$ 9,026.00
$ 9,026.00 - $ 9,026.00
$ 9,026.00
$ 7,221.00
$ 7,221.00 - $ 7,221.00
$ 7,221.00
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 %
$ 1,345.00
$ 1,345.00 - $ 1,345.00
$ 1,345.00
$ 1,075.00
$ 1,075.00 - $ 1,075.00
$ 1,075.00

Foster FF10S-75ORB, 3/8" Flat Face Hydraulic Coupler x 3/4"-16 ORB, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10S-75ORB is a nickel-plated steel 3/8" coupler f...

View full details
$ 1,345.00
$ 1,345.00 - $ 1,345.00
$ 1,345.00
$ 1,075.00
$ 1,075.00 - $ 1,075.00
$ 1,075.00
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 %
$ 2,643.00
$ 2,643.00 - $ 2,643.00
$ 2,643.00
$ 2,115.00
$ 2,115.00 - $ 2,115.00
$ 2,115.00

Foster FF12CUPP-08, 1/2" Flat Face Connect-Under-Pressure Hydraulic Plug x 1/2" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF12CUPP-08 is a nickel-plated steel 1/2" plug from...

View full details
$ 2,643.00
$ 2,643.00 - $ 2,643.00
$ 2,643.00
$ 2,115.00
$ 2,115.00 - $ 2,115.00
$ 2,115.00
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 %
$ 2,643.00
$ 2,643.00 - $ 2,643.00
$ 2,643.00
$ 2,115.00
$ 2,115.00 - $ 2,115.00
$ 2,115.00

Foster FF12CUPP-12, 1/2" Flat Face Connect-Under-Pressure Hydraulic Plug x 3/4" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF12CUPP-12 is a nickel-plated steel 1/2" plug from...

View full details
$ 2,643.00
$ 2,643.00 - $ 2,643.00
$ 2,643.00
$ 2,115.00
$ 2,115.00 - $ 2,115.00
$ 2,115.00
Save 20% Save %

Request a Quote

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