Custom enclosures and assemblies per your specifications
Strong Box has completed the certification and stringent requirements to manufacture both UL NEMA 3SX and 4X enclosures. This new certification gives our enclosures ice buildup protection and pressurized water protection for extremely demanding applications.
The 2018 Catalog is now on-line. Check out our newest innovations!
Who we are
Strong Box was founded in 1985 to meet the need for weather and vandal resistant enclosures. In 1991 Strong Box joined V.I.T. Products, Inc., a leading manufacturer of tree support products, to provide the highest level of quality products and services in the landscape and irrigation industry. Our main office and factory is located in Escondido, California (San Diego County) with representation throughout the United States and Canada. Our Commitment: Quality products, sales and technical support, prompt product availability and after sale service.
What we do
V.I.T. Products, Inc. manufactures high quality stainless steel, steel and aluminum enclosures bearing the trade name Strong Box. Strong Box enclosures are used by irrigation, plumbing and electrical industry professionals to mount and protect electrical and electronic controls as well as protection for backflow prevention devices. Strong Box enclosures feature vandal resistance features and are available in many models. Additionally, V.I.T. Products, Inc. manufactures a line of horticultural tree tying products. Cinch-Tie and Twist-Brace are used by landscape professionals to properly support new plants in their new environment. Strong Box™, Cinch-Tie™, Twist-Brace™, Cinch-Belt™ and QuickPad™ are registered trademarks of V.I.T. Products, Inc.