Every category on your site is different. It will have different types of products, which will have different price ranges and attributes. Kartris lets you create and customize a filter solution for each category, or not have filters on some categories (they're only really required where you have enough products to make sorting necessary).

Creating filters is simple. Navigate to the category in the back end and click to edit it. You should see a tab 'CATEGORY FILTERS'. This holds a text area. There is a small refresh button next to this; clicking it will auto-generate XML configuration for the filters. This looks at which attributes are used by products in the category, and the prices of these products.

You can opt to SAVE this default configuration, or you can manually edit it before saving. This gives you the flexibility to cut particular filters you feel you don't need, adjust price ranges and so on.

If there is no data in this field, the filters won't show. Therefore you can remove filters from a category which has them by simply removing everything from the field and saving it.