The Adapters are installed at the connection location of the rear air conditioning lines. These kits are easy to install in the engine compartment area by any knowledgeable technician There is no need for any modification of the front air conditioning lines. Simply disconnect the rear lines and install this kit. This allows for front air conditioning operation without the loss of refrigerant from the rear lines or evaporator. This makes it unnecessary to absorb the costly replacement of the rear air conditioning lines or evaporator. Compatible with 2007-2017 for Enclave, for Outlook, for , for Acadia 2002-2009 for Trailblazer, for Envoy, Envoy, for , for Ascender 2009-2014 for 2009-2019 for Caravan Minivan 2012-2019 for Town and Country Color: Silver Material: Aluminum Alloy Package Contents: 1x Rear A/C Block Off Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.