Product review (1 stars): No hardware.  Useless.
I needed a Culligan filter with the accompanying hardware to complete the attachment to my water line/refrigerator.  The IC-100-A came with the filter only.  No hardware.  I contacted the local 'Culligan man', who was useless.  I might as well have been speaking in Esperanto.  I looked at Culligan.com for parts, and found nothing.  I have emailed the company.  I'll update this if they come through.  And if they don't, I will certainly update this.