Question: what is the difference between type a and type c pex?
Answer: PEX-A tubing is produced using Peroxide (or, "Engel") method, named after the inventor Tomas Engel. ... This type of PEX is probably the most common and is manufactured by a large number of companies. PEX-C pipe is manufactured using "Electronic Irradiation" method of cross-linking, also known as "Cold" cross-linking.