Re: Culligan IC-100 water filter The new model of the Culligan IC-100 has the quick connect fittings built into the filter so there are no additional fittings to purchase. All you need to do is insert your pipe firmly into the end of the inline filter. In the box, there should be installation instructions for the IC-100. There is a diagram that shows the correct and incorrect way to cut your tubing and insert it into the IC-100 filter. I hope this helps! Culligan is no longer making the model with the nylon compression fittings. The quick connect fittings are the updated model. Thank you, WaterFilters.NET |