Touch less water filter rinse for car from Orange Box?

Hey All,

Which water filter and insert can be used to get soft, sediment free, water to use to rinse my car after washing to eliminate water spots.

I would wash the car with non filtered water and dish soap, and then use the filter set up for the final rinse.

Mr. Clean had a kit that came with a filter that worked great, then they stopped making the replacement filters. The available filters from eBay are now running around 60.00.

I’m hoping there is a way to get the same results for less than 100.00 in parts, the canister and the filter element.

There is a local orange big box store where I can buy the parts, so please suggest brands and models from there, or Amazon.com

Thanks!