Glenn S.
I had a Culligan RO system and tried to…
I had a Culligan RO system and tried to find replacement filters that were so expensive. For years I had to keep paying a Culligan service tech come out and replace my filters for an astronomical price. Then I found this conversion kit trough ESP. Ordered it and received two days later. It took my one hour to install. The kit cost less then Culligans replacement filters. I will subscribe for the replacement filters at less than half the price. Thank you for this solution to my problem.
Response from ESP Water ProductsSep 24, 2026
Glad to hear your RO conversion kit installed fairly easily and you'll be able to save money in the future with replacement filters. Please reach out if you ever have any questions. We're always here to help.




