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You can use Nextopia to display a product filtering area. This in itself isn’t surprising. The API call to Nextopia returns both product results and filtering (or refinement) information that allows users to drill down to more specific products. However, you don’t have to limit the filtering area to a search results page. You can include it on any page that you want. For example, we have set up this “filtering nav” on several ASPDotNetStorefront sites. Storefront doesn’t have an out of the box filtering solution that you can use to narrow the results on the “category” or “brand” pages. However, if your site is already using Nextopia, you can call the API from the listing page (or xml package for an ASPDotNetStorefront site), passing in the category (or brand) name. You’ll get a nice “filtering nav” in the refine results area of the data returned by Nextopia. Stripping just that “filtering nav” from the search results allows the page to use the storefront code to display the products or sub categories associated with the top level category (this helps in search engine visibility) and gives users a way to quickly navigate to the products they might be interested in.