How to Hook Up Air Compressor Lines


Pneumatic tools are powerful, lightweight and durable. They use compressed air as a power source, which means they require air hoses and an air compressor. Air hoses connect using a locking hose coupler, with a male coupling on the pneumatic tool and a female coupling on the compressor. Air hoses will have one male and one female coupling.

  • Slide the spring-loaded collar on the compressor's female coupler backward, away from the open end of the coupler.

  • Insert the hose's male coupler firmly into the compressor's female coupler.

  • Release the collar on the compressor's female coupler. Check to see that it has returned to the original position, holding the hose's male coupler in place.

  • Pull on the hose slightly to verify that the connection is secure.

  • Repeat the steps, connecting the female coupler on the hose to the male coupler on the tool.

Tips & Warnings

  • If the compressor is full of compressed air when you insert the hose into the coupler, you should hear the hose fill with air.
  • When working with power tools, always wear appropriate safety gear, including safety glasses.

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  • Photo Credit tools image by Stelios Filippou from
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