Is the whole house water purification introduced by Ningxia Traffic Radio a whole house purification? Why is it so cheap? Have you ever used it?

Yes, there are two beside the main valve, one in the kitchen and two in the kitchen, one for cooking and the other for drinking. Anyway, it has been installed for more than a year, and the faucet has not been blocked. When it was installed, it was an activity that the manufacturer did directly on the radio, so it was cheap, but it was good to use. I haven't seen a shower head for over a year.