Purchase this filter at: http://www.filterheads.com/AQ1205C
Check to be sure you have a cabin filter before purchase. If you do not have one a cabin filter can be installed with purchase of filter tray part # 25837964.
AQ1205C filter fits:
Buick Enclave 2008-2016
Chevrolet Traverse 2009-2017
GMC Acadia 2007-2016
GMC Acadia Limited 2017
Saturn Outlook 2007-2010
The model shown in this video is a 2012 Buick Enclave, but installation is similar on the other models.