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NPT-to-NPT Straight Coupling 3/8 in End A Diameter Threaded Fittings

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31 results

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  • Best Match
  • Time: ending soonest
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    • Fitting Type: Straight Coupling- Selected
    • End A-to-End B: NPT-to-NPT- Selected
    • End A Diameter: 3/8 in- Selected
    Clear All

    • Reducer 3/8 Female Npt to 1/4 Male Npt Pipe Adapter Brass Reducer Fitting 25pcs - Image 1 of 4
    • Reducer 3/8 Female Npt to 1/4 Male Npt Pipe Adapter Brass Reducer Fitting 25pcs - Image 2 of 4
    • Reducer 3/8 Female Npt to 1/4 Male Npt Pipe Adapter Brass Reducer Fitting 25pcs - Image 3 of 4
    • Reducer 3/8 Female Npt to 1/4 Male Npt Pipe Adapter Brass Reducer Fitting 25pcs - Image 4 of 4

    Reducer 3/8 Female Npt to 1/4 Male Npt Pipe Adapter Brass Reducer Fitting 25pcs

    Brand New · Unbranded
    RM 170.61
    or Best Offer
    RM 101.69 shipping
    Z⁣T⁣ ⁣S⁣Y⁣P⁣ ⁣E⁣p⁣8⁣ ⁣o⁣n⁣4⁣s⁣o⁣r⁣е⁣d⁣2⁣ ⁣⁣O⁣⁣⁣⁣U⁣ ⁣
    • Stainless Steel 304 Fitting Reducing Coupling Class 150 3/8" X 1/4" Female NPT - Image 1 of 2
    • Stainless Steel 304 Fitting Reducing Coupling Class 150 3/8" X 1/4" Female NPT - Image 2 of 2

    Stainless Steel 304 Fitting Reducing Coupling Class 150 3/8" X 1/4" Female NPT

    Brand New
    RM 24.34
    RM 95.83 shipping
    V⁣S⁣p⁣o⁣H⁣ ⁣Y⁣Z⁣n⁣ѕ⁣ ⁣o⁣r⁣e⁣H⁣3⁣d⁣⁣⁣ ⁣⁣⁣⁣E⁣⁣F⁣⁣ ⁣
    • ASP 304 Stainless Steel Pipe Union Class 1M Female 3/8" NPT to Female 3/8" NPT - Image 1 of 2
    • ASP 304 Stainless Steel Pipe Union Class 1M Female 3/8" NPT to Female 3/8" NPT - Image 2 of 2

    ASP 304 Stainless Steel Pipe Union Class 1M Female 3/8" NPT to Female 3/8" NPT

    New (Other)
    RM 64.17
    RM 77.35 shipping
    G⁣I⁣ ⁣S⁣A⁣X⁣ ⁣р⁣o⁣A⁣9⁣n⁣ ⁣s⁣o⁣Z⁣K⁣ ⁣F⁣r⁣K⁣ ⁣e⁣⁣d⁣⁣⁣⁣
    • Stainless Steel 304 Fitting Reducing Coupling Class 150 3/8" X 1/8" Female NPT - Image 1 of 2
    • Stainless Steel 304 Fitting Reducing Coupling Class 150 3/8" X 1/8" Female NPT - Image 2 of 2

    Stainless Steel 304 Fitting Reducing Coupling Class 150 3/8" X 1/8" Female NPT

    Brand New
    RM 24.34
    RM 95.83 shipping
    S⁣p⁣о⁣N⁣n⁣s⁣R⁣o⁣ ⁣r⁣e⁣B⁣d⁣⁣K⁣ ⁣A⁣Z⁣⁣⁣ ⁣F⁣Q⁣⁣⁣ ⁣S⁣4⁣
  • Reducer 3/8 Female Npt to 1/4 Male Npt Pipe Adapter Brass 28193L WAG 120REC - Image 1 of 4

    Reducer 3/8 Female Npt to 1/4 Male Npt Pipe Adapter Brass 28193L WAG 120REC

    Brand New
    RM 11.77
    or Best Offer
    RM 95.06 shipping
    1,365 sold
    3⁣G⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ ⁣Q⁣5⁣ ⁣5⁣B⁣⁣⁣⁣ ⁣Y⁣V⁣ ⁣1⁣⁣Y⁣
  • 3/8" 150 Female (NPT) Full Coupling 304 Stainless Steel Coupler SS050341304 - Image 1 of 4

    3/8" 150 Female (NPT) Full Coupling 304 Stainless Steel Coupler SS050341304

    Brand New
    RM 38.29
    RM 64.43 shipping
    589 sold
    ⁣⁣⁣⁣⁣⁣M⁣M⁣ ⁣⁣I⁣L⁣ ⁣⁣⁣⁣X⁣9⁣ ⁣⁣⁣⁣⁣1⁣⁣L⁣⁣⁣
  • HYDRAULIC PIPE FITTING REDUCER 3/8" MALE to 1/4" FEMALE--QUANTITY FOUR--NEW - Image 1 of 3

    HYDRAULIC PIPE FITTING REDUCER 3/8" MALE to 1/4" FEMALE--QUANTITY FOUR--NEW

    Brand New · Unbranded
    RM 63.75
    RM 86.16 shipping
    17 sold
    A⁣⁣⁣⁣⁣⁣P⁣⁣⁣ ⁣⁣⁣⁣E⁣3⁣⁣ ⁣8⁣5⁣ ⁣⁣⁣⁣⁣X⁣⁣⁣⁣
  • Qty (10) Parker 222P-6-4 Brass Reducing Adapter 3/8” FNPT To 1/4” MNPT, USA - Image 1 of 4

    Qty (10) Parker 222P-6-4 Brass Reducing Adapter 3/8” FNPT To 1/4” MNPT, USA

    New (Other) · Parker
    RM 128.13
    RM 81.80 shipping
    X⁣⁣⁣⁣⁣Q⁣⁣⁣⁣⁣ ⁣⁣0⁣P⁣ ⁣⁣⁣R⁣⁣⁣F⁣⁣ ⁣⁣P⁣J⁣⁣ ⁣
  • FITOK 316 SS Hex Reducing Coupling 3/8 × 1/4 FNPT, 5300 psi, SS-PCG-NS6-NS4 - Image 1 of 2

    FITOK 316 SS Hex Reducing Coupling 3/8 × 1/4 FNPT, 5300 psi, SS-PCG-NS6-NS4

    Brand New
    RM 61.09
    RM 77.26 shipping
    O⁣⁣M⁣ ⁣L⁣⁣E⁣ ⁣I⁣C⁣⁣⁣⁣ ⁣C⁣⁣O⁣⁣ ⁣⁣B⁣⁣⁣⁣⁣⁣⁣Z⁣
  • 3/8" 3000 (3M) Threaded (NPT) Full Coupling A105 Forged Steel FS050321 - Image 1 of 4

    3/8" 3000 (3M) Threaded (NPT) Full Coupling A105 Forged Steel FS050321

    Brand New · Unbranded
    RM 40.13
    RM 64.52 shipping
    ⁣G⁣5⁣ ⁣⁣⁣R⁣J⁣ ⁣⁣⁣U⁣⁣0⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣T⁣⁣W⁣
  • 3/8" 3000 (3M) Female (NPT) Full Coupling 304 Stainless Steel SS050321304 - Image 1 of 4

    3/8" 3000 (3M) Female (NPT) Full Coupling 304 Stainless Steel SS050321304

    Brand New
    RM 45.09
    RM 64.64 shipping
    50 sold
    0⁣V⁣ ⁣⁣V⁣⁣⁣S⁣ ⁣7⁣⁣⁣⁣⁣D⁣ ⁣T⁣⁣P⁣ ⁣7⁣⁣N⁣ ⁣⁣⁣⁣L⁣
  • LOT OF 4 Full Coupling 3/8"NPT female 304 Stainless Steel Coupler 3/8 in. FNPT - Image 1 of 3

    LOT OF 4 Full Coupling 3/8"NPT female 304 Stainless Steel Coupler 3/8 in. FNPT

    Brand New
    RM 51.34
    RM 85.09 shipping
    ⁣W⁣F⁣⁣ ⁣⁣⁣V⁣⁣A⁣⁣ ⁣9⁣P⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣O⁣⁣C⁣
  • Qty(20) Plumbing coupling fitting 1/8"NPT Female x 1/8"NPT Female. NPT-t-NPT - Image 1 of 4

    Qty(20) Plumbing coupling fitting 1/8"NPT Female x 1/8"NPT Female. NPT-t-NPT

    Brand New
    RM 188.58
    Was: RM 209.55was - RM 209.55
    RM 81.03 shipping
    G⁣W⁣⁣ ⁣⁣L⁣⁣V⁣ ⁣⁣G⁣5⁣ ⁣F⁣X⁣⁣⁣⁣ ⁣⁣⁣⁣⁣J⁣Y⁣⁣ ⁣⁣
  • 33250-06-06 3/8" Brass Female Pipe Union NPT - Image 1 of 1

    33250-06-06 3/8" Brass Female Pipe Union NPT

    New (Other) · Unbranded
    RM 57.76
    RM 77.18 shipping
    Only 1 left!
    8⁣S⁣p⁣B⁣о⁣n⁣s⁣o⁣r⁣e⁣ ⁣P⁣2⁣ ⁣d⁣⁣Z⁣M⁣ ⁣⁣⁣G⁣⁣L⁣⁣⁣⁣⁣
  • Stainless Steel 316 Fitting Reducing Coupling Class 150 3/8" X 1/8" NPT - Image 1 of 2

    Stainless Steel 316 Fitting Reducing Coupling Class 150 3/8" X 1/8" NPT

    Brand New
    RM 23.92
    RM 95.83 shipping
    S⁣F⁣Z⁣p⁣o⁣ ⁣n⁣s⁣o⁣X⁣r⁣е⁣6⁣d⁣⁣ ⁣⁣⁣⁣⁣B⁣3⁣ ⁣⁣⁣B⁣L⁣ ⁣
  • (2) 33300-06-02 Brass Reducer Coupling Female 3/8 NPT to Female 1/8 NPT - Image 1 of 1

    (2) 33300-06-02 Brass Reducer Coupling Female 3/8 NPT to Female 1/8 NPT

    New (Other) · Unbranded
    RM 34.23
    RM 76.49 shipping
    S⁣S⁣p⁣o⁣X⁣ ⁣7⁣U⁣ ⁣n⁣s⁣2⁣o⁣Q⁣r⁣е⁣ ⁣4⁣P⁣ ⁣P⁣Q⁣ ⁣J⁣⁣d⁣ ⁣⁣
  • Pipe Adapter 3/8 Female to 1/4 Male NPT Brass Fitting- Water Air Gas - 10 pack - Image 1 of 2

    Pipe Adapter 3/8 Female to 1/4 Male NPT Brass Fitting- Water Air Gas - 10 pack

    Brand New · Unbranded
    RM 278.08
    or Best Offer
    RM 83.68 shipping
    ⁣⁣C⁣0⁣ ⁣C⁣⁣G⁣ ⁣Q⁣8⁣ ⁣⁣⁣F⁣⁣N⁣⁣ ⁣G⁣J⁣ ⁣⁣⁣⁣⁣S⁣⁣
  • THREADED STEEL CLOSE NIPPLE 3/8" NPT 1" LONG LOT OF 3 NNB - Image 1 of 4

    THREADED STEEL CLOSE NIPPLE 3/8" NPT 1" LONG LOT OF 3 NNB

    New (Other) · Unbranded
    RM 51.21
    or Best Offer
    RM 76.96 shipping
    ⁣⁣7⁣1⁣⁣ ⁣⁣Y⁣D⁣ ⁣⁣⁣⁣9⁣⁣U⁣⁣⁣ ⁣⁣D⁣⁣⁣P⁣⁣⁣ ⁣⁣
  • Banjo Threaded Polypropylene Pipe Coupling, 3/8" NPT Female - CPLG038 - Image 1 of 4

    Banjo Threaded Polypropylene Pipe Coupling, 3/8" NPT Female - CPLG038

    Brand New
    RM 38.46
    RM 64.43 shipping
    V⁣⁣1⁣ ⁣⁣Z⁣Q⁣⁣ ⁣⁣Y⁣C⁣ ⁣⁣A⁣⁣R⁣⁣ ⁣⁣⁣⁣⁣⁣9⁣⁣⁣O⁣
  • 3/8" Threaded Union 304 Stainless Steel - Image 1 of 4

    3/8" Threaded Union 304 Stainless Steel

    Brand New · Unbranded
    RM 27.17
    RM 145.42 shipping
    7⁣Y⁣⁣ ⁣V⁣C⁣ ⁣G⁣7⁣⁣ ⁣⁣⁣⁣⁣O⁣Z⁣ ⁣9⁣⁣W⁣⁣ ⁣4⁣⁣⁣ ⁣⁣
  • Stainless Steel 304 Fitting 3/8" Inch Full Coupling Class 150 Heavy Duty - Image 1 of 1

    Stainless Steel 304 Fitting 3/8" Inch Full Coupling Class 150 Heavy Duty

    Brand New
    RM 23.06
    RM 95.79 shipping
    L⁣⁣⁣8⁣⁣⁣⁣⁣ ⁣X⁣⁣⁣⁣⁣⁣S⁣⁣⁣⁣ ⁣6⁣K⁣⁣ ⁣V⁣⁣⁣⁣
  • Stainless Steel 316 Fitting 3/8" Inch Full Coupling Class 150 Heavy Duty - Image 1 of 1

    Stainless Steel 316 Fitting 3/8" Inch Full Coupling Class 150 Heavy Duty

    Brand New
    RM 25.20
    RM 96.26 shipping
    ⁣⁣⁣⁣⁣⁣J⁣⁣⁣8⁣⁣⁣⁣⁣ ⁣⁣4⁣L⁣⁣⁣ ⁣⁣J⁣⁣O⁣ ⁣L⁣⁣
  • 3/8" Galvanized Coupler NPT - Image 1 of 1

    3/8" Galvanized Coupler NPT

    Brand New
    RM 13.86
    RM 81.84 shipping
    ⁣⁣6⁣⁣U⁣ ⁣⁣G⁣⁣⁣H⁣ ⁣N⁣⁣A⁣ ⁣4⁣⁣4⁣⁣⁣⁣⁣⁣ ⁣⁣⁣8⁣
  • (Ships Fast) 3/8" NPT Female Full Coupling | 3000 (3M) 304 Stainless Steel - Image 1 of 3

    (Ships Fast) 3/8" NPT Female Full Coupling | 3000 (3M) 304 Stainless Steel

    Brand New
    RM 55.40
    RM 77.09 shipping
    Z⁣⁣B⁣ ⁣B⁣O⁣⁣ ⁣⁣X⁣6⁣ ⁣⁣⁣2⁣⁣K⁣ ⁣⁣T⁣⁣⁣O⁣⁣ ⁣⁣⁣8⁣
  • Lot of 13, 3/8" NPT, Female 3-Piece Brass Pipe Union Couplings - Image 1 of 3

    Lot of 13, 3/8" NPT, Female 3-Piece Brass Pipe Union Couplings

    New (Other)
    RM 256.48
    RM 296.35 shipping
    ⁣P⁣⁣Y⁣ ⁣T⁣⁣0⁣ ⁣⁣4⁣⁣⁣⁣E⁣⁣⁣ ⁣⁣A⁣O⁣⁣⁣ ⁣Z⁣⁣⁣⁣
  • 1/4 FNPT x 3/8 FNPT 316ss Hex Reducing Coupling Cajon Swagelok SS-6-HRCG-4 - Image 1 of 1

    1/4 FNPT x 3/8 FNPT 316ss Hex Reducing Coupling Cajon Swagelok SS-6-HRCG-4

    Brand New · Swagelok
    RM 75.30
    Was: RM 94.12was - RM 94.12
    RM 83.68 shipping
    M⁣⁣D⁣ ⁣Q⁣⁣B⁣ ⁣⁣G⁣6⁣ ⁣⁣⁣⁣A⁣⁣9⁣⁣ ⁣O⁣⁣⁣⁣⁣⁣S⁣ ⁣
  • 3/8" FPT x 1/4" MPT Reducing Adapter, Parker 222P-6-4 - Lot of 5, New - Image 1 of 4

    3/8" FPT x 1/4" MPT Reducing Adapter, Parker 222P-6-4 - Lot of 5, New

    Brand New · Parker
    RM 51.34
    or Best Offer
    RM 120.39 shipping
    L⁣⁣⁣⁣S⁣ ⁣W⁣T⁣⁣⁣⁣⁣⁣ ⁣4⁣1⁣ ⁣J⁣C⁣⁣⁣⁣ ⁣R⁣4⁣⁣⁣ ⁣
  • STRAIGHT BRASS FITTING (3/8” NPTF, .455" ID, .670” DIA., 1.04” LG.) X111H - Image 1 of 4

    STRAIGHT BRASS FITTING (3/8” NPTF, .455" ID, .670” DIA., 1.04” LG.) X111H

    New (Other) · Unbranded
    RM 38.46
    or Best Offer
    RM 98.01 shipping
    ⁣⁣G⁣7⁣ ⁣⁣⁣8⁣⁣⁣R⁣ ⁣0⁣⁣⁣⁣⁣E⁣ ⁣0⁣⁣⁣A⁣ ⁣⁣P⁣⁣⁣
  • 3/8" FNPT TO 5/8" NPT ORB STRAIGHT REDUCING COUPLERS (LOT OF 12) 6410-06-10 - Image 1 of 4

    3/8" FNPT TO 5/8" NPT ORB STRAIGHT REDUCING COUPLERS (LOT OF 12) 6410-06-10

    Pre-Owned · Unbranded
    RM 256.69
    or Best Offer
    RM 125.82 shipping
    ⁣⁣⁣Q⁣E⁣ ⁣8⁣T⁣ ⁣⁣M⁣⁣O⁣⁣ ⁣⁣⁣⁣⁣⁣N⁣⁣⁣W⁣⁣ ⁣⁣⁣
  • 15 New Parker 6-4 FHC-B Female Hex Couplers / 3/8" x 1/4" FNPT Pipe Fittings - Image 1 of 4

    15 New Parker 6-4 FHC-B Female Hex Couplers / 3/8" x 1/4" FNPT Pipe Fittings

    Brand New · Parker
    RM 151.41
    Was: RM 178.14was - RM 178.14
    or Best Offer
    RM 199.19 shipping
    6⁣B⁣⁣ ⁣⁣C⁣T⁣ ⁣D⁣⁣Z⁣ ⁣K⁣R⁣ ⁣⁣O⁣A⁣ ⁣S⁣⁣⁣⁣⁣⁣⁣⁣⁣
  • FITOK 316 SS Hex Coupling 3/8 Female NPT, 5300 psi, SS-PCG-NS6 - Image 1 of 2

    FITOK 316 SS Hex Coupling 3/8 Female NPT, 5300 psi, SS-PCG-NS6

    Brand New
    RM 62.42
    RM 77.31 shipping
    4⁣6⁣⁣⁣ ⁣⁣⁣⁣4⁣⁣G⁣⁣ ⁣0⁣⁣⁣T⁣ ⁣5⁣5⁣⁣⁣ ⁣R⁣E⁣⁣⁣⁣