Whole house water filter system help?

I suggest the Culligan WH-HD200-C because I have a deep well at home. Rust, calcium, and tiny particles have always been a concern for me. It took me several months to clean all of the washer inlet screens and screens of rust and debris that were obstructing the flow of water. I’ve already started looking for and testing this product. For use with it, I bought Culligan CW5-BBS Whole Home Heavy Duty Water Filter Replacement Cartridge, 16,000 Gallons, White. I’m worried about a big decrease in water pressure from my well, but we didn’t find any. This product comes highly recommended from me. It’s well-made and extremely durable.