The Backflow Protector Line of enclosures is the perfect choice when you need a more competitively priced backflow security cage that still has high quality construction but is made of lighter tubular steel. It still has the same signature rounded design of all GuardShack products without any sharp corners. They have two recessed locking points making the foot print of the entire cage smaller. Backflow Protectors are constructed of 1-1/2" .095 tubular steel. These enclosures are professionally powder coated to exacting standards for lasting durability, in environmentally friendly premium finishes. Standard colors for these models are in high gloss Woodland Tan & Forest Green which were selected to blend into most any landscaping.