fiberglassBOX 9313-EWK Electrical Box, 3 -Gang, Fiberglass Reinforced Polyester BMC, Beige/Tan

Thermoset fiberglass with ears, wing brackets, speed clamps. Lightweight, non-corrosive, non-conductive, no ground required. Will not melt or distort in high heat. Shatter-resistant in cold temperatures. 2 hr wall fire rating. 2-7/8 x 5-15/16 x 3-1/4 in UL listed.