WPHobby WooCommerce Product Filter
WPHobby WooCommerce Product Filter is a flexible WooCommerce Plugin
make your visitors can select products by its categories, products attributes, tags, products taxonomies and price.
This plugin comes with built in widgets that you can use to place as many instances of attributes as you needed.
Unzip the downloaded zip file.
Upload the plugin folder into the
wp-content/plugins/ directory of your WordPress site.
WPHobby WooCommerce Product Filter from Plugins page.
Why the widget not displayed in my sidebar?
you need to assign the widget to the sidebar of the Shop page. And you also need to have WooCommerce Product Attributes assigned your product.