

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The ARLINGTON INDUSTRIES DBP21DC is a Dri-Box adapter designed for use with non-metallic cover and base configurations. This adapter provides a weatherproof interface between an existing electrical back box and an outdoor-rated enclosure, allowing safe routing and protection of low-voltage or line-voltage wiring connections in exposed locations. Electricians and electrical contractors install this component where a standard back box needs to be adapted to accept a protective outdoor box cover and base assembly. The unit is sold individually and is categorized as a back box accessory.
This adapter is suited for residential and light commercial electrical installations where outdoor receptacles, switches, or device connections require additional environmental protection. Typical applications include exterior wall outlets, low-voltage device mounting points, and locations subject to moisture exposure. The non-metallic cover and base make it appropriate for environments where corrosion resistance is a priority, such as covered patios, eaves, or exterior wall penetrations.
Designed as an OEM-style replacement and accessory adapter for use with standard residential and light commercial electrical back boxes requiring a non-metallic outdoor cover and base assembly.
Installation should be performed by a licensed electrician in accordance with applicable NEC requirements for outdoor and wet-location wiring. De-energize the circuit at the breaker panel and verify with a non-contact voltage tester before beginning work. Ensure the back box is securely mounted before attaching the adapter, cover, and base components. Verify gasket seating and enclosure integrity after assembly to maintain weatherproof protection.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!