There are a couple different styles of Filtr_Guard water filters, and I'd like to help you find the correct one.
There are several different types of Filtr_Guard filters like this one. They vary by size. Does the filter inside your housing look similar to this filter?
P5 Water Filter and Culligan P-5 Sediment Filters for 10 inch Whole House Housings
This is another type of Filtr-Guard filter that has been discontinued. Does your filter look like this one? If so, we'll have to get you a different type of system since these are no longer made.
Culligan SG-2 Superguard Water Filter, Culligan Super Guard THM, and Culligan Flavor Guard SG2
Please let me know if you have any questions.
Thank you,
WaterFilters.NET