Foster FST Series Couplers (Straight-Thru)
Foster FST Series full-flow straight-through hydraulic couplers and plugs — no valve in either half, so the inside diameter matches the nominal pipe for maximum flow. Standard Industrial Interchange with manual sleeve connection, body sizes 1/8" to 1-1/2". Brass, steel, and 303 stainless; ball-lock option available. Note: lines do not self-seal on disconnect.
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Original price €8,95 - Original price €8,95Original price€8,95€8,95 - €8,95Current price €8,95Foster 75FP, 3/4" Straight-Thru Plug x 3/4" Female NPT, FST Series, Steel
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75FP is a steel 3/4" plug from the FST Straight-Thru Series - with NO valve i...
View full detailsOriginal price €8,95 - Original price €8,95Original price€8,95€8,95 - €8,95Current price €8,95 -
Original price €10,95 - Original price €10,95Original price€10,95€10,95 - €10,95Current price €10,95
Foster 75FPB, 3/4" Straight-Thru Plug x 3/4" Female NPT, FST Series, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75FPB is a brass 3/4" plug from the FST Straight-Thru Series - with NO valve ...
View full detailsOriginal price €10,95 - Original price €10,95Original price€10,95€10,95 - €10,95Current price €10,95 -
Original price €34,95 - Original price €34,95Original price€34,95€34,95 - €34,95Current price €34,95
Foster 75FPS, 3/4" Straight-Thru Plug x 3/4" Female NPT, FST Series, 303 Stainless Steel
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75FPS is a 303 stainless steel 3/4" plug from the FST Straight-Thru Series - ...
View full detailsOriginal price €34,95 - Original price €34,95Original price€34,95€34,95 - €34,95Current price €34,95 -
Original price €25,95 - Original price €25,95Original price€25,95€25,95 - €25,95Current price €25,95
Foster 75FS, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75FS is a brass 3/4" coupler from the FST Straight-Thru Series - with NO valv...
View full detailsOriginal price €25,95 - Original price €25,95Original price€25,95€25,95 - €25,95Current price €25,95 -
Original price €28,95 - Original price €28,95Original price€28,95€28,95 - €28,95Current price €28,95
Foster 75FS-101, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Viton Seal, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75FS-101 is a brass 3/4" coupler from the FST Straight-Thru Series - with NO ...
View full detailsOriginal price €28,95 - Original price €28,95Original price€28,95€28,95 - €28,95Current price €28,95 -
Original price €28,95 - Original price €28,95Original price€28,95€28,95 - €28,95Current price €28,95
Foster 75FS-103, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, EPDM Seal, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75FS-103 is a brass 3/4" coupler from the FST Straight-Thru Series - with NO ...
View full detailsOriginal price €28,95 - Original price €28,95Original price€28,95€28,95 - €28,95Current price €28,95 -
Original price €29,95 - Original price €29,95Original price€29,95€29,95 - €29,95Current price €29,95
Foster 75FS-104, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Silicone Seal, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75FS-104 is a brass 3/4" coupler from the FST Straight-Thru Series - with NO ...
View full detailsOriginal price €29,95 - Original price €29,95Original price€29,95€29,95 - €29,95Current price €29,95 -
Original price €83,95 - Original price €83,95Original price€83,95€83,95 - €83,95Current price €83,95
Foster 75FSS, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, 303 Stainless Steel
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75FSS is a 303 stainless steel 3/4" coupler from the FST Straight-Thru Series...
View full detailsOriginal price €83,95 - Original price €83,95Original price€83,95€83,95 - €83,95Current price €83,95 -
Original price €85,95 - Original price €85,95Original price€85,95€85,95 - €85,95Current price €85,95
Foster 75FSS-101, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Viton Seal, 303 Stainless Steel
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75FSS-101 is a 303 stainless steel 3/4" coupler from the FST Straight-Thru Se...
View full detailsOriginal price €85,95 - Original price €85,95Original price€85,95€85,95 - €85,95Current price €85,95 -
Original price €87,95 - Original price €87,95Original price€87,95€87,95 - €87,95Current price €87,95
Foster 75FSS-103, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, EPDM Seal, 303 Stainless Steel
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75FSS-103 is a 303 stainless steel 3/4" coupler from the FST Straight-Thru Se...
View full detailsOriginal price €87,95 - Original price €87,95Original price€87,95€87,95 - €87,95Current price €87,95 -
Original price €12,95 - Original price €12,95Original price€12,95€12,95 - €12,95Current price €12,95
Foster 75HPB, 3/4" Straight-Thru Plug x 3/4" Hose ID, FST Series, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster 75HPB is a brass 3/4" plug from the FST Straight-Thru Series - with NO valve ...
View full detailsOriginal price €12,95 - Original price €12,95Original price€12,95€12,95 - €12,95Current price €12,95 -
Original price €46,95 - Original price €46,95Original price€46,95€46,95 - €46,95Current price €46,95
Foster BL100FS, 1" Straight-Thru Coupler x 1" Female NPT, FST Series, Ball Lock, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL100FS is a brass 1" coupler from the FST Straight-Thru Series - with NO val...
View full detailsOriginal price €46,95 - Original price €46,95Original price€46,95€46,95 - €46,95Current price €46,95 -
Original price €134,95 - Original price €134,95Original price€134,95€134,95 - €134,95Current price €134,95
Foster BL100FSS, 1" Straight-Thru Coupler x 1" Female NPT, FST Series, Ball Lock, 303 Stainless Steel
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL100FSS is a 303 stainless steel 1" coupler from the FST Straight-Thru Serie...
View full detailsOriginal price €134,95 - Original price €134,95Original price€134,95€134,95 - €134,95Current price €134,95 -
Original price €123,95 - Original price €123,95Original price€123,95€123,95 - €123,95Current price €123,95
Foster BL125FS, 1-1/4" Straight-Thru Coupler x 1-1/4" Female NPT, FST Series, Ball Lock, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL125FS is a brass 1-1/4" coupler from the FST Straight-Thru Series - with NO...
View full detailsOriginal price €123,95 - Original price €123,95Original price€123,95€123,95 - €123,95Current price €123,95 -
Original price €13,95 - Original price €13,95Original price€13,95€13,95 - €13,95Current price €13,95
Foster BL12FS, 1/8" Straight-Thru Coupler x 1/8" Female NPT, FST Series, Ball Lock, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL12FS is a brass 1/8" coupler from the FST Straight-Thru Series - with NO va...
View full detailsOriginal price €13,95 - Original price €13,95Original price€13,95€13,95 - €13,95Current price €13,95 -
Original price €34,95 - Original price €34,95Original price€34,95€34,95 - €34,95Current price €34,95
Foster BL12FSS, 1/8" Straight-Thru Coupler x 1/8" Female NPT, FST Series, Ball Lock, 303 Stainless Steel
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL12FSS is a 303 stainless steel 1/8" coupler from the FST Straight-Thru Seri...
View full detailsOriginal price €34,95 - Original price €34,95Original price€34,95€34,95 - €34,95Current price €34,95 -
Original price €214,95 - Original price €214,95Original price€214,95€214,95 - €214,95Current price €214,95
Foster BL150FS, 1-1/2" Straight-Thru Coupler x 1-1/2" Female NPT, FST Series, Ball Lock, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL150FS is a brass 1-1/2" coupler from the FST Straight-Thru Series - with NO...
View full detailsOriginal price €214,95 - Original price €214,95Original price€214,95€214,95 - €214,95Current price €214,95 -
Original price €14,95 - Original price €14,95Original price€14,95€14,95 - €14,95Current price €14,95
Foster BL25FS, 1/4" Straight-Thru Coupler x 1/4" Female NPT, FST Series, Ball Lock, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL25FS is a brass 1/4" coupler from the FST Straight-Thru Series - with NO va...
View full detailsOriginal price €14,95 - Original price €14,95Original price€14,95€14,95 - €14,95Current price €14,95 -
Original price €52,95 - Original price €52,95Original price€52,95€52,95 - €52,95Current price €52,95
Foster BL25FSS, 1/4" Straight-Thru Coupler x 1/4" Female NPT, FST Series, Ball Lock, 303 Stainless Steel
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL25FSS is a 303 stainless steel 1/4" coupler from the FST Straight-Thru Seri...
View full detailsOriginal price €52,95 - Original price €52,95Original price€52,95€52,95 - €52,95Current price €52,95 -
Original price €17,95 - Original price €17,95Original price€17,95€17,95 - €17,95Current price €17,95
Foster BL38FS, 3/8" Straight-Thru Coupler x 3/8" Female NPT, FST Series, Ball Lock, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL38FS is a brass 3/8" coupler from the FST Straight-Thru Series - with NO va...
View full detailsOriginal price €17,95 - Original price €17,95Original price€17,95€17,95 - €17,95Current price €17,95 -
Original price €56,95 - Original price €56,95Original price€56,95€56,95 - €56,95Current price €56,95
Foster BL38FSS, 3/8" Straight-Thru Coupler x 3/8" Female NPT, FST Series, Ball Lock, 303 Stainless Steel
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL38FSS is a 303 stainless steel 3/8" coupler from the FST Straight-Thru Seri...
View full detailsOriginal price €56,95 - Original price €56,95Original price€56,95€56,95 - €56,95Current price €56,95 -
Original price €22,95 - Original price €22,95Original price€22,95€22,95 - €22,95Current price €22,95
Foster BL50FS, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, Ball Lock, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL50FS is a brass 1/2" coupler from the FST Straight-Thru Series - with NO va...
View full detailsOriginal price €22,95 - Original price €22,95Original price€22,95€22,95 - €22,95Current price €22,95 -
Original price €63,95 - Original price €63,95Original price€63,95€63,95 - €63,95Current price €63,95
Foster BL50FSS, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, Ball Lock, 303 Stainless Steel
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL50FSS is a 303 stainless steel 1/2" coupler from the FST Straight-Thru Seri...
View full detailsOriginal price €63,95 - Original price €63,95Original price€63,95€63,95 - €63,95Current price €63,95 -
Original price €33,95 - Original price €33,95Original price€33,95€33,95 - €33,95Current price €33,95
Foster BL75FS, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Ball Lock, Brass
In stockMaximum-flow connections for air, fluid, and vacuum lines. The Foster BL75FS is a brass 3/4" coupler from the FST Straight-Thru Series - with NO va...
View full detailsOriginal price €33,95 - Original price €33,95Original price€33,95€33,95 - €33,95Current price €33,95
