Found one at Ace Hardware. Any suggestions on any other stores that I would find this whole house water filter at? Doing a comparison shop so I can get the best price to have my neighbor install it in 1 month.

Found one at Ace Hardware. Any suggestions on any other stores that I would find this whole house water filter at? Doing a comparison shop so I can get the best price to have my neighbor install it in 1 month.
... price comparison shopping and try locating Culligan's site so you can check who they sell to.

I think there are a number of brands that all take the same cartridges. Check the low price leaders such as the home centers and discount stores. My house has an old Stiles-Kem Dew Clear filter housing. Culligan and other filters fit it fine. I can get the charcoal filters I use to control odor at Ace Hardware as cheap as anywhere else.