Indoor/Outdoor Enclosure. I recommend every customer install their PCL-854 in this enclosure unless the unit is being installed in an environmentally controlled room. It comes with its own wall mounting kit, and vent plug. You will also need the Enclosure Kit. This item is just the enclosure. Note: I drop ship these enclosures directly from the manufacturer to you. This is a very high quality enclosure rated weatherproof, waterproof and corrosion-resistant.