I have a PEX plumbing pipe installation. Where do I place H2know?

Cross-linked polyethylene (PEX) tubing is a plastic material used for water supply piping systems. It is becoming a popular alternative to plumbing installations because PEX is flexible and easier to install than a rigid pipe, and it offers high heat-resistance and long-term durability.  H2know works with PEX installations. Just place H2know on the incoming cold water line prior to the PEX manifold.