# Collection filtering

![](https://3450226476-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MI6cK8SrstUdE_nxQrW%2F-MVT0oPEf73A3rUwqybC%2F-MVT9ihWY3Q3ta6ksL97%2FKapture%202021-03-10%20at%2014.03.30.gif?alt=media\&token=07573955-62a5-41e8-a2d0-35a619eb146c)

## Setup

Start by adding custom product tags to your products in the Shopify Admin:

![Tip: Add multiple tags to link with multiple filter groups](https://3450226476-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MI6cK8SrstUdE_nxQrW%2F-MVvqpr813dskBMcOq7C%2F-MVw3HCerqJbRVTfV48L%2FScreen%20Shot%202021-03-16%20at%2010.23.59%20AM.png?alt=media\&token=4e3f8e8d-290e-4f72-9694-47d17242c49c)

![Adding tags to products in the Shopify Product editor](https://3450226476-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MI6cK8SrstUdE_nxQrW%2F-MVvqpr813dskBMcOq7C%2F-MVw3RYN5NfZJMoAwfYD%2FKapture%202021-03-16%20at%2010.18.48.gif?alt=media\&token=a99ce68a-5121-420c-ab61-fbfff8d6999a)

In the Theme Editor under Collection, Collection page. In the Content section, choose Add tag grouping:

![Use Add Tag grouping for each filter group](https://3450226476-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MI6cK8SrstUdE_nxQrW%2F-MVvqpr813dskBMcOq7C%2F-MVw3mSdVbWs7zC21f7q%2Fcollection-page-settings-content-group-tagging.jpg?alt=media\&token=bca787a4-2605-4558-91b6-6afcf889481f)

Add a Group name which will be displayed as the heading for the filter group. Followed by a list of tags for the group.

![Use a comma after each tag ](https://3450226476-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MI6cK8SrstUdE_nxQrW%2F-MVvqpr813dskBMcOq7C%2F-MVw46XSuDKLulXSvsEq%2FScreen%20Shot%202021-03-16%20at%2010.27.43%20AM.png?alt=media\&token=cd8527b5-9397-4325-a5fc-90e1a4a56a3b)

Example of comma separated tags:

```
2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
```

![](https://3450226476-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MI6cK8SrstUdE_nxQrW%2F-MVvqpr813dskBMcOq7C%2F-MVw4P3J9291MW9MqVJ6%2FKapture%202021-03-16%20at%2010.22.46.gif?alt=media\&token=8570ada2-8268-4ceb-87e6-32a334e01f67)