What Adapter For

What water line connects a dishwasher?

The valve end is 3/8" compression. The dishwasher end depends on its inlet valve, so check the dishwasher’s installation guide for the elbow it needs before you choose the connector.

What fits

Dishwasher connector, 3/8" compression at the valve

the dishwasher end depends on its inlet

Available on Amazon

Dishwasher supply connector with elbow

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  • Turn the water off at the shutoff valve first. When the line is on, turn the water back on slowly and check both ends for leaks.
  • BrassCraft sells dishwasher connectors as 3/8" compression at both ends, and as 3/8" compression x 3/4" female hose thread with a swivel elbow.
  • Check the dishwasher’s installation guide for the elbow its inlet valve needs, then use the connector with the matching end. Measure the run from valve to inlet. BrassCraft’s connectors run from 12" to 120".
  • No tape or sealant. These lines seal with built-in washers.

Dishwashers don’t share one inlet size, so there’s no single right connector. The valve end is 3/8" compression.

More: Supply line sizes

Keep going

Dishwasher drain connectionFaucet supply line sizeIce maker water lineAdapter finderGarden hose to 1/2" pipeGarden hose to 3/4" pipeConnect two garden hoses

For a different part on either end, open the adapter finder with this pair picked.

Where we get our information from

The sizes on this page come from published standards and the makers’ own documents. Checked against published data from BrassCraft and Fluidmaster.

See all 4 sources
  • BrassCraft, angle stop product pages (compression, FIP, sweat, PEX and push-connect inlets; 3/8", 7/16", 1/2" and 1/4" O.D. outlets; 1/2" nominal = 5/8" O.D.)
  • Fluidmaster, faucet and toilet connector catalogs and Click Seal pages (FM91429, FM91233)
  • BrassCraft, dishwasher (B1-DW, B1-60DW1) and ice maker (B0-IM) connectors
  • BrassCraft, installation instructions for connectors (425.10, 425.07, B0120IMB) and water supply stops (425.04)

General guidance from manufacturer and standards data. Parts vary by brand, so check the size printed on the package against what you measured. For gas lines or anything inside a wall, use a licensed plumber.