A product select filter for a WordPress website

I need to replicate a product filter like on the following link, http://www.allen-heath.com/uk/Products/pages/ProductSelector.aspx

This is to be php based and use products from a WordPress database, the products are set as a custom post type. The criteria for the selection will be built into the products post type as either a tag/taxonomy or custom field

It needs to replicate the exact functionality of the link provided so please check all of its functionality before replying

Thanks