Fiberglass Plenum-Backed Diffuser for T-Bar Lay-In

Fiberglass back meets or exceeds the following tests and ratings.

  • Bonded foil vapor barrier minimizes condensation
  • Deep plenum cavity improves performance
  • 6" to 16" diameter pre-scored back allows neck to be determined at time of installation
  • Back labeled with necessary code approvals
  • Meets 25/50 tested in accordance with A.S.T.M E84 (UL 723)
  • UL 181 Erosion and Impact Test
  • "R" Values of 4.2, 6.0 and 8.0