The Gentex GHLFBB Surface Back Box is constructed of durable plastic that is ANSI/UL 464 listed for indoor applications when used with GHLF wall mount low frequency horns.
- ANSI/UL listed for indoor use only
- Conduit and surface raceway knockouts included
- Unit dimensions: 6.25" (15.88 cm) high x 5.76" (14.63 cm) wide x 1.67" (4.24 cm) deep
- Available in red or off-white