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The A16164SUG is an extender component designed for screw-cover pull boxes manufactured by Hoffman Enclosures, Inc. Constructed from galvanized steel, this accessory features a gray interior finish and is engineered to fit enclosures with dimensions of 16.00 inches by 16.00 inches. It is rated for Type 1 indoor environments, providing basic protection against falling objects and limited ingress of solid foreign bodies. The unit serves as a modular extension to increase internal volume or adjust depth within compatible junction box assemblies.
Verify compatibility with existing 16x16 screw-cover pull box models before procurement. Confirm that the application environment remains strictly indoors, as the Type 1 rating does not support outdoor or wet locations. Ensure structural integration aligns with the specific mounting requirements of the base enclosure unit.
Select this extender only when expanding an existing 16-inch square pull box configuration. It is not a standalone enclosure but an additive component. Verify that the base box utilizes a screw-cover design compatible with this specific extender model to ensure proper sealing and mechanical stability.
This part belongs to the Hoffman Enclosures line of accessories and extensions. It complements the main series of metal pull boxes by allowing field adjustments to internal space without replacing the entire housing. It is categorized under box accessories rather than primary enclosures.
No direct public substitute part numbers are documented for this specific extender model. Compatibility is restricted to the original manufacturer's 16x16 screw-cover pull box series.

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