Backflow enclosures are a very important part of your backflow preventer system.  They protect your backflow devices from the weather, from vandals, and they improve the appearance of your yard/home.  Consider, also, that using a backflow enclosure can prolong the life of your backflow preventer and help prevent unnecessary repairs caused by freezing temperatures or overheating from direct sunlight.

It just makes good sense to use a backflow enclosure.

Ask your local backflow testing company for more information.  In Texas, the company to call for information and affordable backflow testing and questions is City Backflow Testing.