NOT Compatible
"This kit was not compatible with my Culligan RO system. The kit contains only the inner filter tube that has to go inside the existing plastic screw -on tube. However, even the plumber could not get the Culligan tube open to put the new filter inside. It is not a replacement for the Culligan brand, but a part that goes inside your existing Culligan canister, and that canister cannot be opened. The plumber installed one of three pieces that came in the kit. The other two could not be installed. This managed to completely stop the entire RO from working. So not only wasted money on the filters, but now my system won't work at all. I will have to buy a new non-Culligan RO, or drive out of town to the nearest Culligan store to purchase the correct filters. (Culligan will not mail them to me)."