Thanks to the excellent  functionality of WooCommerce products filter, you can easily control the height of the filter block.
And immediately look at the changes in the preview

Filter Block Height

Here you can set the height in pixels. If not filled, then the height is calculated automatically based on the content of the filter. Please note that if the value of the Maximum height in frontend of the filter is greater than the specified value, some data may be hidden

Check out our Filter and block Width article to improve the look of your filter and the entire store.