Advance Product Filter For Virtuemart is a Joomla module that allows you to create an advanced Virtuemart product filter. You can create an Ajax filter by name, price, category, weight, color, and height. Module features: convenient search by rating and product name, search by category and price, search by product size, convenient search by manufacturers, the ability to search for products by color, search using Ajax technology and other functions.
Info: https://cmsmart.net/virtuemart-extensions/custom-filter-for-virtuemart