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JG 1/4 inch x 1/8in NPTF Male Elbow - White

JG 1/4 inch x 1/8in NPTF Male Elbow - White


Item #: RO5171

In Stock

Color: White
John Guest Part# : CI489821W
Tube O.D.: 1/4"
Thread NPTF: 1/8"

How to make a connection
  • Cut tube square
    It is essential that the outside diameter be free of score marks and that burrs and sharp edges be removed before inserting into fitting. For soft or thin walled plastic tubing we recommend the use of a tube insert.
  • Insert tube
    Fitting grips before it seals. Ensure tube is pushed in to the tube stop.
  • Push up to tube stop
    Push the tube into the fitting, to the tube stop. The collet (gripper) has stainless steel teeth which hold the tube firmly in position while the "O" ring provides a permanent leak proof seal.
  • Pull to check secure
    Pull on the tube to check it is secure. It is good practice to test the system prior to leaving site and/or before use.
Push in Collet and remove tube

To disconnect, ensure the system is depressurized before removing fitting. Push in collet squarely against face of fitting. With the Collet held in this position, the tube can be removed. The fitting can then be re-used.

Manufacturer information

John Guest
In 1961 John Guest`s vision was to run a company with innovation, quality and sustainable growth to be at the core of the organization’s principles.

In 1974, John Guest developed his first push in tube connector for use with compressed air. That basic "Super Speedfit" concept has been developed to include fittings for a wide range of applications.

John Guest`s World Headquarters are located in the UK where all their fittings are designed, manufactured and distributed throughout the world.

5 Stars


Reviewed on
January 16, 2020

Yes, I would recommend this.

Great for DIY guys

Good to have spare parts when needed.

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michael d morley

Reviewed on
July 21, 2013

Yes, I would recommend this.

Replacement parts

Make sure you own some Teflon tape and screw this baby in for a easy replacement. Seems with RODI units that once everything is setup and running you are good for a good amount of time. However, once the membranes need to be replaced you will have some DIY work to do as leaks may occur from replacement parts and tubing. Nice to see that Marine Depot's customer service comes through when you need them when leaks occur. Thanks Marine Depot!

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