Uponor Logic Plumbing uses flexible PEX tubing and F1960 cold-expansion ProPEX® fittings for faster, easier plumbing installations compared to crimp fittings with PEX. Watch our video to learn more about Uponor Logic Plumbing in comparison to PEX crimp fittings.Click to see full answer. Similarly, it is asked, what type of PEX is Uponor?It is a flexible, durable, corrosion-resistant product that possesses distinctive properties that make it ideal for plumbing systems. There are three different types of PEX tubing: PEX-a, PEX-b and PEX-c. Uponor manufactures PEX-a tubing, which is considered the superior type of PEX in the industry.Beside above, what is the difference between PEX A and PEX C? PEX-A is the most flexible of all PEX tubing types, has little or no coil memory and gives installer an ability to repair kinks with a heat gun. Second is the price, which coupled with fittings and tools may become as much as 2-3 times higher than PEX-B or PEX-C options. One may also ask, can you use PEX fittings on Uponor? It is not recommended to use non-ProPEX fittings with Uponor PEX pipe. For one, you lose the 25-year warranty on the pipe and fittings.Why is PEX banned in California?PEX Banned From California ’01 Code. Uponor Wirsbo said its PEX pipe was introduced in California in 1990 and that the product helps solve problems in areas with aggressive soil conditions that copper pipe cannot solve.