RectorSeal's single Metacaulk box guard is inserted on the inside back wall of an electrical box prior to wiring. Approved for metal outlet boxes with metal, decora style or plastic cover plates. Browse more firestop products at HomElectrical today!
- Single.
- Metacaulk Box Guard is applied by hand, and must comply with NEC 314.16 (formerly 370.16) or other applicable codes.
- STC 53 Rating, Tested in a UL 411 wall assembly or section to ASTM E90.
- Easy to Install- Adheres to Back of Electrical Box.
- Cost Effective and Great for retrofit jobs.
- ASTM E814 (UL 1479).
- Insert on inside back panel of electrical boxes to maintain integrity of fire-rated wall assemblies.
- When used as directed, horizontal separation between outlet boxes on opposite sides of wall may be less than 24 inches.
- Non-Conductive, Dielectric Breakdown Voltage 22V/mil (ASTM D 149).
- Adheres to back of electrical box.
- Certifications: UL Certified, FM Approved, Clean Air Gold.