Price field slider range

Hi we have in that page (https://romsus.es/) a price field and we use a slider range mode for the search type but we need anything else

We need a slider range as this one (https://www.btproperties.es/). Basically is a slider range that only have a max value with a increase value on thousands not in units (100.00, 200.000, 300.000, etc… until the top value for example 5.000.000)

How we could do that, any snippet or aditional code could do this?????

IF you know any developer that could do that for us please let us know too.

Thanks to everyone that could help us.

The page I need help with: [log in to see the link]