Upgrade your remodeling projects with the Cantex EZ21SO Old Work Switch/Outlet Box. Designed for one-gang installations, this gray PVC box delivers a generous 21 cu in of wiring capacity to accommodate switches or receptacles while keeping your connections neat and code-compliant. Its lightweight yet sturdy construction ensures lasting durability in both residential and light commercial settings.

Whether you’re replacing an existing box or installing a new outlet, the EZ21SO streamlines the process. Built-in EZ mount flanges and winged swing tabs anchor the box securely to drywall, while integrated wire v-clamps hold conductors firmly in place—eliminating the need for separate clamps and reducing installation time.

Key Features

• Industry-standard 1-gang design fits most switches and receptacles
• 21 cu in capacity for ample wiring room and easier terminations
• Durable, non-corrosive PVC construction resists impact and moisture
• EZ mount flanges and swing tabs secure box without additional brackets
• Built-in wire v-clamps eliminate separate clamp hardware
• UL listed for safe, code-compliant installations

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.