399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
[399]

I've been a customer for years and have urged several people to purchase RODI units and replacement filters and parts for quite some time now.

I just wanted to thank you for the clear, precise order of all I purchase and the quickness of getting orders out. I was amazed and grateful that I actually received this order in only two days.

Sincerely,
michael lanphier