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Backflow Protection
StrongBox Backflow Enclosures
Aluminum and stainless steel enclosures that protect backflow preventers from vandalism, theft, and extreme weather — flush-mounted, locking, and built for easy maintenance.
StrongBox backflow enclosures are aluminum or stainless steel enclosures made to protect backflow preventers from vandalism, extreme weather and natural elements. StrongBox enclosures are designed for easy cleaning and routine maintenance. Each unit is flush mounted and locks to provide maximum security. Every StrongBox product ships free on all orders.
Aluminum · Low
Aluminum Enclosures — Low Profile
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Aluminum · High
Aluminum Enclosures — High Profile
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Smooth Touch · Low
Smooth Touch Covers — Low Profile
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Smooth Touch · High
Smooth Touch Covers — High Profile
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Expanded Metal · Low
Expanded Metal Covers — Low Profile
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Expanded Metal · High
Expanded Metal Covers — High Profile
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Insulation
Polar Bearier Slip-On Insulating Covers
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Mounting
QuickPads for StrongBox Enclosures
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Cages
Backflow Preventer Cages
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StrongBox Enclosure FAQ
What makes StrongBox better than the competition?
StrongBox enclosures are more ergonomic than other enclosures in that the stainless steel grates open on a hinge, reducing lifting strain on the back. Additionally, the quality control and tight fabrication tolerances ensure that replacement parts will fit the same as when your enclosure was brand new.
Do StrongBox enclosures need to be installed on a concrete pad?
StrongBox enclosures do not need to be installed on a concrete pad. You can excavate and bury the QuickPad Enclosure box, which performs as a platform for any enclosure to rest on. This is a big advantage that enables flexibility on installation placement.
Does StrongBox offer enclosure heaters with each unit?
StrongBox does not offer backflow enclosure heaters; however, you can either bring your own heater and integrate it in, or use the Slip-On Polar Bearier enclosure cover. The Polar Bearier bag provides R-19 thermal insulation and helps against temporary cold snaps when temperatures drop below freezing for 1–2 days. It prevents damage to backflow components and is ideal for warmer/moderate climates that don't typically encounter below-freezing temps.
StrongBox Enclosures on Real Projects
Horse Creek Ridge — North San Diego County
D.R. Horton's master-planned community in the hills of North San Diego County spans seven residential neighborhoods, commercial centers, and a public sports park, with an HOA maintaining extensive landscaping, slopes, trails, and open space. Landscape architect Julie Howard of Howard Associates notes that a high-quality master-planned irrigation system was critical given the diversity of the areas. Calsense, a custom irrigation design firm in Carlsbad, specified the controllers — and depends on dependable enclosures to house them. Today Horse Creek Ridge has 25 StrongBox enclosures, with plans to add more at the adjacent Palomar College Center.
Mueller Austin — Austin, Texas
Mueller Austin is a model for modern urban design, built on the site of a former municipal airport just minutes from downtown Austin, with 140 acres of parks and open space. StrongBox has been the community's chosen enclosure since construction began 10 years ago, serving its electrical and irrigation controller needs with weather-resistant stainless steel construction. Thad Henry, VP for Bay & Associates, chose StrongBox because it was pre-approved by Austin Energy and the developer, and has used dozens of enclosures across the development — featuring the MPS Series metered enclosures and SB Series pedestals and wall mounts.
Built for Drought-Tolerant Landscapes
As water conservationists and city regulators across the Southwest push for lower landscape water use, commercial properties are shifting to native greenery and drip irrigation. Where conventional systems used 8 to 16 valves, drip systems now run on 4 to 6, delivering water directly to individual plants — and those controllers still need protection. Modern controllers use ET data from NOAA or soil-moisture sensors to fine-tune watering, and an enclosure protects that investment: if controls are vandalized or shut off, drip-sustained plants can die within weeks. Scott Rowan, Director of Community Asset Management for DMB Communities in Scottsdale, credits StrongBox enclosures for standing up to desert conditions that exceed 100 degrees for 30+ days at a time across projects including Eastmark in Mesa, AZ.
Enclosures That Deter Theft
Vandalism has risen across the country over the past six years, with thieves targeting the valuable brass piping in backflow devices — roughly 30 lbs of brass per unit. To stop it, cities are replacing open cages with powder-coated solid enclosures that conceal the device entirely. If thieves can't see what's underneath, the temptation isn't there.
Disney Theme Parks Use StrongBox
D.D. Pagano and Associates have relied on StrongBox for over 20 years, and StrongBox cabinets are now found in every Disney park worldwide — including Shanghai Disney, which opened in 2016. The stainless steel construction gives Disney assurance against corrosion and workmanship issues. The Top Mount SB-16SS suited Shanghai because it blended into the foliage, and Anaheim's park uses flip-tops painted to match the greenery. Installed largely behind the scenes during Epcot and Disney World redevelopment, the cabinets reflect why irrigation specialists in Orange County choose StrongBox for their Disney projects.