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National Pipe Thread Adapters

  • Hardwall tubing adapters
  • Barbed softwall tubing adapters
  • Softwall adapter plugs for 1/4" AND 1/2" NPT ports
  • External male NPT Adapters

For secure fluid connections to a manifold, select a fitting based on your tubing outer diameter (OD) for hard wall tubing or inner diameter (ID) for soft wall tubing. Wrap NPT threads 3-4 times and wrench tighten for leak-resistant connections.

Vaplock NPT Adapters
Hardwall tubing adapters

Vaplock NPT Adapters
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Picture of AB-111X - BARBED TUBING CONNECTION, 1/16" ID tubing

AB-111X - BARBED TUBING CONNECTION, 1/16" ID tubing

x 1/4" NPT, PP, 10/PK
$8.92
Picture of AB-112X - BARBED TUBING CONNECTION, 1/8" ID tubing x

AB-112X - BARBED TUBING CONNECTION, 1/8" ID tubing x

1/4" NPT, PP, 10/PK
$8.92
Picture of AB-113X - BARBED TUBING CONNECTION, 3/16" ID tubing

AB-113X - BARBED TUBING CONNECTION, 3/16" ID tubing

x 1/4" NPT, PP, 10/PK
$8.92
Picture of AB-114X - BARBED TUBING FTG, 1/4" ID, 1/4"NPT, 10/pk,PP

AB-114X - BARBED TUBING FTG, 1/4" ID, 1/4"NPT, 10/pk,PP

$8.92
Picture of AB-115X - BARBED TUBING CONNECTION, 5/16" ID tubing

AB-115X - BARBED TUBING CONNECTION, 5/16" ID tubing

x 1/4" NPT, PP, 10/PK
$9.51
Picture of AB-116X - BARBED TUBING FTG, 3/8" ID X 1/4" NPT, PP, 10

AB-116X - BARBED TUBING FTG, 3/8" ID X 1/4" NPT, PP, 10

1/4" NPT, PP, 10/PK
$9.51
Picture of AB-117X - BARBED TUBING 1/2" ID x 1/4" NPT, PP, 10/pk

AB-117X - BARBED TUBING 1/2" ID x 1/4" NPT, PP, 10/pk

1/4" NPT, PP, 10/PK
$9.51
Picture of AB-118X - BARBED TUBING CONNECTION, 5/32" ID tubing

AB-118X - BARBED TUBING CONNECTION, 5/32" ID tubing

x 1/4" NPT, PP, 10/PK
$8.92
Picture of AB-204X - BARBED TUBING, 1/4" ID x 1/2" NPT, PP, 10/PK

AB-204X - BARBED TUBING, 1/4" ID x 1/2" NPT, PP, 10/PK

$10.19
Picture of AB-205X - BARBED TUBING FRG, 3/8" ID x 1/2" NPT, PP, 10

AB-205X - BARBED TUBING FRG, 3/8" ID x 1/2" NPT, PP, 10

1/2" NPT, PP, 10/PK
$11.06
Picture of AB-206X - BARBED TUBING CONNECTION, 1/2" ID tubing x

AB-206X - BARBED TUBING CONNECTION, 1/2" ID tubing x

1/2" NPT, PP, 10/PK
$10.86
Picture of AB-207X - BARBED TUBING CONNECTION, 5/8" ID tubing x

AB-207X - BARBED TUBING CONNECTION, 5/8" ID tubing x

1/2" NPT, PP, 10/PK
$10.86
Picture of AB-208X - BARBED TUBING CONNECTION, 3/4" ID tubing x

AB-208X - BARBED TUBING CONNECTION, 3/4" ID tubing x

1/2" NPT, PP, 10/PK
$10.86
Picture of AC-108 - TUBING CONNECTION, 4.0mm OD tubing x 1/4" NPT

AC-108 - TUBING CONNECTION, 4.0mm OD tubing x 1/4" NPT

,natural PEEK fitting, natural Tefzel ferrule, , PP body
$21.31
Picture of AC-109 - TUBING CONNECTION, 3/16 OD tubing x 1/4" NPT,

AC-109 - TUBING CONNECTION, 3/16 OD tubing x 1/4" NPT,

white Delrin fitting, blue Tefzel ferrule PP, body
$21.31
Picture of AC-113V - TUBING CONNECTION, 1/4" and 6mmODx1/4"NPT, PP

AC-113V - TUBING CONNECTION, 1/4" and 6mmODx1/4"NPT, PP

5/pk
$12.35
Picture of AC-114V - TUBING CONNECTION, 5/16"OD x 1/4" NPT, PP 5pk

AC-114V - TUBING CONNECTION, 5/16"OD x 1/4" NPT, PP 5pk

$12.35
Picture of AC-115V - 3/8" OD tubing x 1/4" NPT, PP, 5/pk

AC-115V - 3/8" OD tubing x 1/4" NPT, PP, 5/pk

$12.35
Picture of AC-116V - TUBING CONNECTION, 1/2" OD x 1/4" NPT,PP,5/pk

AC-116V - TUBING CONNECTION, 1/2" OD x 1/4" NPT,PP,5/pk

$23.94
Picture of AC-150 - TUBING CONNECTION, 1/16" OD tubing x 1/4" NPT

AC-150 - TUBING CONNECTION, 1/16" OD tubing x 1/4" NPT

Green Polypropylene fitting, Blue Tefzel ferrule, PP adapter
$16.31
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