Add Custom Range Field To Products Table Fro Search Filters

How can I add custom range fields similar to the 'price' field to the product table so customers can slide the bar on that field search option filter just like they do on the price range filter?

I need to do this as well. many of my products have ranges in their specifications. For example a specification is between 100 and 200 for product A and between 50 and 150 for product B.

I need to be able to add ranges as features and filters. But how?

Is this possible in cs-cart or does this require an addon?