Oxygen, Argon, CO2, Nitrogen and other compressed gasses come in high pressure bottles. Most people use K sized tanks before upgrading to an oxygen compression system. Myself included.

In the process of moving and storing tanks, their handles sometimes become damaged. One of the few components of a high pressure tank that are safe to service is this handle.

I modeled a new handle to print on a 3D printer. Download it here:

Removing the handle should only be done when the tank is empty.

These handles were compatible with old Linde tanks with Fine Thread 3-1/8 collars. The recess accommodates a spring and cap.

Use this file with caution.

See below for a few images of where the spring, cap and nut go.