To enable this, create a smart collection named All Products and set the condition to 'Product price is greater than 0'. You can create a collection through the 'Collections' menu in Shopify admin. Or you can turn this section off through theme settings.
SPX B.A.R. 97 SMALL SCREEN Filter, 75 MICRON. P.N. 897 02822. THIS IS FOR 1-9 FILTERS. BUY A BOX OF 10 AND SAVE.