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Connect 3/8 hose to 1/4 air compressor

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by Vance
(Fairfax, VA)

Hello, how do I connect a 3/8″ air hose to my 1/4″ port 6gal air compressor?

Do I need a reducer?

Do they make a 3/8″ FNPT to a 1/4″ plug?

Are the plug all same size to fit into compressor or need specific 1/4 or 3/8 plug to connect to quick connect on compressor?

Thanks.

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Connect 3/8 hose to 1/4 air compressor
by: Bill

Vance, it depends on how you wish to do so. It were me, I’d use a coupler / connector combination.

Please see these pages for details, and then add a comment if you still have a question.

https://about-air-compressors.com/compressed-air-connectors.html
https://about-air-compressors.com/compressed-air-couplers.html

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3/8 vs 1/4
by: Doug in s.d.ca

Perhaps you’re not familiar with pipe vs hose vs tube sizes…see

https://about-air-compressors.com/fitting.html

If you have 3/8 hose, it will fit the usual “1/4 inch” barb connector you find in the local big-box store. So, typically you won’t need an adapter, it’s part of the connector design.

If your hose has pipe connectors, they are almost always 1/4 inch *pipe* size, which measures about 3/8 inch diameter.


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By Bill Wade

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