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.
-
Original price $ 458.00Original price $ 458.00 - Original price $ 458.00Original price $ 458.00Current price $ 366.00$ 366.00 - $ 366.00Current price $ 366.00
Foster K4S-103, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, EPDM Seal, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K4S-103 is a plated steel 1/2" plug from th...
View full detailsOriginal price $ 458.00Original price $ 458.00 - Original price $ 458.00Original price $ 458.00Current price $ 366.00$ 366.00 - $ 366.00Current price $ 366.00Save 20% -
Original price $ 1,261.00Original price $ 1,261.00 - Original price $ 1,261.00Original price $ 1,261.00Current price $ 1,009.00$ 1,009.00 - $ 1,009.00Current price $ 1,009.00
Foster K4S/S, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K4S/S is a 303 stainless steel 1/2" plug fr...
View full detailsOriginal price $ 1,261.00Original price $ 1,261.00 - Original price $ 1,261.00Original price $ 1,261.00Current price $ 1,009.00$ 1,009.00 - $ 1,009.00Current price $ 1,009.00Save 20% -
Original price $ 1,364.00Original price $ 1,364.00 - Original price $ 1,364.00Original price $ 1,364.00Current price $ 1,091.00$ 1,091.00 - $ 1,091.00Current price $ 1,091.00
Foster K4S/S-101, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K4S/S-101 is a 303 stainless steel 1/2" plu...
View full detailsOriginal price $ 1,364.00Original price $ 1,364.00 - Original price $ 1,364.00Original price $ 1,364.00Current price $ 1,091.00$ 1,091.00 - $ 1,091.00Current price $ 1,091.00Save 20% -
Original price $ 1,382.00Original price $ 1,382.00 - Original price $ 1,382.00Original price $ 1,382.00Current price $ 1,105.00$ 1,105.00 - $ 1,105.00Current price $ 1,105.00
Foster K4S/S-103, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K4S/S-103 is a 303 stainless steel 1/2" plu...
View full detailsOriginal price $ 1,382.00Original price $ 1,382.00 - Original price $ 1,382.00Original price $ 1,382.00Current price $ 1,105.00$ 1,105.00 - $ 1,105.00Current price $ 1,105.00Save 20% -
Original price $ 1,286.00Original price $ 1,286.00 - Original price $ 1,286.00Original price $ 1,286.00Current price $ 1,029.00$ 1,029.00 - $ 1,029.00Current price $ 1,029.00
Foster K4S/SLV, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, Less Valve, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K4S/SLV is a 303 stainless steel 1/2" plug ...
View full detailsOriginal price $ 1,286.00Original price $ 1,286.00 - Original price $ 1,286.00Original price $ 1,286.00Current price $ 1,029.00$ 1,029.00 - $ 1,029.00Current price $ 1,029.00Save 20% -
Original price $ 550.00Original price $ 550.00 - Original price $ 550.00Original price $ 550.00Current price $ 440.00$ 440.00 - $ 440.00Current price $ 440.00
Foster K4S10, 1/2" ISO-B Hydraulic Plug x 7/8"-14 SAE, ISO-B Series, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K4S10 is a plated steel 1/2" plug from the ...
View full detailsOriginal price $ 550.00Original price $ 550.00 - Original price $ 550.00Original price $ 550.00Current price $ 440.00$ 440.00 - $ 440.00Current price $ 440.00Save 20% -
Original price $ 382.00Original price $ 382.00 - Original price $ 382.00Original price $ 382.00Current price $ 305.00$ 305.00 - $ 305.00Current price $ 305.00
Foster K4SLV, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, Less Valve, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K4SLV is a plated steel 1/2" plug from the ...
View full detailsOriginal price $ 382.00Original price $ 382.00 - Original price $ 382.00Original price $ 382.00Current price $ 305.00$ 305.00 - $ 305.00Current price $ 305.00Save 20% -
Original price $ 718.00Original price $ 718.00 - Original price $ 718.00Original price $ 718.00Current price $ 575.00$ 575.00 - $ 575.00Current price $ 575.00
Foster K6B, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6B is a brass 3/4" plug from the ISO-B Ser...
View full detailsOriginal price $ 718.00Original price $ 718.00 - Original price $ 718.00Original price $ 718.00Current price $ 575.00$ 575.00 - $ 575.00Current price $ 575.00Save 20% -
Original price $ 924.00Original price $ 924.00 - Original price $ 924.00Original price $ 924.00Current price $ 740.00$ 740.00 - $ 740.00Current price $ 740.00
Foster K6B-101, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Viton Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6B-101 is a brass 3/4" plug from the ISO-B...
View full detailsOriginal price $ 924.00Original price $ 924.00 - Original price $ 924.00Original price $ 924.00Current price $ 740.00$ 740.00 - $ 740.00Current price $ 740.00Save 20% -
Original price $ 875.00Original price $ 875.00 - Original price $ 875.00Original price $ 875.00Current price $ 699.00$ 699.00 - $ 699.00Current price $ 699.00
Foster K6B-103, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, EPDM Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6B-103 is a brass 3/4" plug from the ISO-B...
View full detailsOriginal price $ 875.00Original price $ 875.00 - Original price $ 875.00Original price $ 875.00Current price $ 699.00$ 699.00 - $ 699.00Current price $ 699.00Save 20% -
Original price $ 664.00Original price $ 664.00 - Original price $ 664.00Original price $ 664.00Current price $ 531.00$ 531.00 - $ 531.00Current price $ 531.00
Foster K6S, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6S is a plated steel 3/4" plug from the IS...
View full detailsOriginal price $ 664.00Original price $ 664.00 - Original price $ 664.00Original price $ 664.00Current price $ 531.00$ 531.00 - $ 531.00Current price $ 531.00Save 20% -
Original price $ 729.00Original price $ 729.00 - Original price $ 729.00Original price $ 729.00Current price $ 584.00$ 584.00 - $ 584.00Current price $ 584.00
Foster K6S-101, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Viton Seal, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6S-101 is a plated steel 3/4" plug from th...
View full detailsOriginal price $ 729.00Original price $ 729.00 - Original price $ 729.00Original price $ 729.00Current price $ 584.00$ 584.00 - $ 584.00Current price $ 584.00Save 20% -
Original price $ 715.00Original price $ 715.00 - Original price $ 715.00Original price $ 715.00Current price $ 573.00$ 573.00 - $ 573.00Current price $ 573.00
Foster K6S-102, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Neoprene Seal, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6S-102 is a plated steel 3/4" plug from th...
View full detailsOriginal price $ 715.00Original price $ 715.00 - Original price $ 715.00Original price $ 715.00Current price $ 573.00$ 573.00 - $ 573.00Current price $ 573.00Save 20% -
Original price $ 717.00Original price $ 717.00 - Original price $ 717.00Original price $ 717.00Current price $ 573.00$ 573.00 - $ 573.00Current price $ 573.00
Foster K6S-103, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, EPDM Seal, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6S-103 is a plated steel 3/4" plug from th...
View full detailsOriginal price $ 717.00Original price $ 717.00 - Original price $ 717.00Original price $ 717.00Current price $ 573.00$ 573.00 - $ 573.00Current price $ 573.00Save 20% -
Original price $ 1,899.00Original price $ 1,899.00 - Original price $ 1,899.00Original price $ 1,899.00Current price $ 1,520.00$ 1,520.00 - $ 1,520.00Current price $ 1,520.00
Foster K6S/S, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6S/S is a 303 stainless steel 3/4" plug fr...
View full detailsOriginal price $ 1,899.00Original price $ 1,899.00 - Original price $ 1,899.00Original price $ 1,899.00Current price $ 1,520.00$ 1,520.00 - $ 1,520.00Current price $ 1,520.00Save 20% -
Original price $ 2,038.00Original price $ 2,038.00 - Original price $ 2,038.00Original price $ 2,038.00Current price $ 1,630.00$ 1,630.00 - $ 1,630.00Current price $ 1,630.00
Foster K6S/S-101, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6S/S-101 is a 303 stainless steel 3/4" plu...
View full detailsOriginal price $ 2,038.00Original price $ 2,038.00 - Original price $ 2,038.00Original price $ 2,038.00Current price $ 1,630.00$ 1,630.00 - $ 1,630.00Current price $ 1,630.00Save 20% -
Original price $ 2,064.00Original price $ 2,064.00 - Original price $ 2,064.00Original price $ 2,064.00Current price $ 1,653.00$ 1,653.00 - $ 1,653.00Current price $ 1,653.00
Foster K6S/S-103, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6S/S-103 is a 303 stainless steel 3/4" plu...
View full detailsOriginal price $ 2,064.00Original price $ 2,064.00 - Original price $ 2,064.00Original price $ 2,064.00Current price $ 1,653.00$ 1,653.00 - $ 1,653.00Current price $ 1,653.00Save 20% -
Original price $ 1,937.00Original price $ 1,937.00 - Original price $ 1,937.00Original price $ 1,937.00Current price $ 1,548.00$ 1,548.00 - $ 1,548.00Current price $ 1,548.00
Foster K6S/SLV, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Less Valve, 303 Stainless Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6S/SLV is a 303 stainless steel 3/4" plug ...
View full detailsOriginal price $ 1,937.00Original price $ 1,937.00 - Original price $ 1,937.00Original price $ 1,937.00Current price $ 1,548.00$ 1,548.00 - $ 1,548.00Current price $ 1,548.00Save 20% -
Original price $ 745.00Original price $ 745.00 - Original price $ 745.00Original price $ 745.00Current price $ 596.00$ 596.00 - $ 596.00Current price $ 596.00
Foster K6S12, 3/4" ISO-B Hydraulic Plug x 1-1/16"-12 SAE, ISO-B Series, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6S12 is a plated steel 3/4" plug from the ...
View full detailsOriginal price $ 745.00Original price $ 745.00 - Original price $ 745.00Original price $ 745.00Current price $ 596.00$ 596.00 - $ 596.00Current price $ 596.00Save 20% -
Original price $ 598.00Original price $ 598.00 - Original price $ 598.00Original price $ 598.00Current price $ 479.00$ 479.00 - $ 479.00Current price $ 479.00
Foster K6SLV, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Less Valve, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K6SLV is a plated steel 3/4" plug from the ...
View full detailsOriginal price $ 598.00Original price $ 598.00 - Original price $ 598.00Original price $ 598.00Current price $ 479.00$ 479.00 - $ 479.00Current price $ 479.00Save 20% -
Original price $ 1,158.00Original price $ 1,158.00 - Original price $ 1,158.00Original price $ 1,158.00Current price $ 926.00$ 926.00 - $ 926.00Current price $ 926.00
Foster K8B, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K8B is a brass 1" plug from the ISO-B Serie...
View full detailsOriginal price $ 1,158.00Original price $ 1,158.00 - Original price $ 1,158.00Original price $ 1,158.00Current price $ 926.00$ 926.00 - $ 926.00Current price $ 926.00Save 20% -
Original price $ 1,453.00Original price $ 1,453.00 - Original price $ 1,453.00Original price $ 1,453.00Current price $ 1,162.00$ 1,162.00 - $ 1,162.00Current price $ 1,162.00
Foster K8B-101, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Viton Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K8B-101 is a brass 1" plug from the ISO-B S...
View full detailsOriginal price $ 1,453.00Original price $ 1,453.00 - Original price $ 1,453.00Original price $ 1,453.00Current price $ 1,162.00$ 1,162.00 - $ 1,162.00Current price $ 1,162.00Save 20% -
Original price $ 1,431.00Original price $ 1,431.00 - Original price $ 1,431.00Original price $ 1,431.00Current price $ 1,144.00$ 1,144.00 - $ 1,144.00Current price $ 1,144.00
Foster K8B-103, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, EPDM Seal, Brass
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K8B-103 is a brass 1" plug from the ISO-B S...
View full detailsOriginal price $ 1,431.00Original price $ 1,431.00 - Original price $ 1,431.00Original price $ 1,431.00Current price $ 1,144.00$ 1,144.00 - $ 1,144.00Current price $ 1,144.00Save 20% -
Original price $ 878.00Original price $ 878.00 - Original price $ 878.00Original price $ 878.00Current price $ 703.00$ 703.00 - $ 703.00Current price $ 703.00
Foster K8S, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Plated Steel
In stockReliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K8S is a plated steel 1" plug from the ISO-...
View full detailsOriginal price $ 878.00Original price $ 878.00 - Original price $ 878.00Original price $ 878.00Current price $ 703.00$ 703.00 - $ 703.00Current price $ 703.00Save 20%
