Griplok Tube Fittings are designed, manufactured, and quality controlled to be totally "interchangeable" with the Hoke® Gyrolok® brand of tube fittings. Further, component by component examination plainly shows the two brands as completely "component-intermixable".

To provide a reliable, leak-proof connection in instrumentation and process tubing systems, Griplok tube fittings consist of four precision-machined components: body, front ferrule, rear ferrule, and nut.

During make-up, the controlled drive action of the ferrules compensates for the variation in tubing materials, hardness, and thickness of the tube wall to provide leak-tight connections in an extensive range of applications.