Unilok Tube Fittings are designed, manufactured, and quality controlled to be totally "interchangeable" with the Parker™ CPI 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, Unilok tube fittings consist of three precision-machined components: body, ferrule, and nut.
The single ferrule design, with the spring-like action of the ferrule during make-up, 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.