MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
[MK550]

Hello,

Thanks again for the replacement part(check valve). Heck YEA!!!!!!!!!! It fixed the sqeeky noise. The unit is absolutely silent. Thank you so much. It Is really refreshing to see a company really completely 100% stand behind its products NO QUESTIONS ASKED. I will talk to all my family and see If I can talk them into a system (for drinking) and offer to install it myself. People should know how stand up you guys are.

Sincerely with gratitude
Dean Wert