Chicago Plenum Plaster Frame #1286-00 L:12-7/16 x W:8-5/8

Plaster frame, Chicago Plenum, with anti-vibration features, for 1681 and 1685 Airtight I.C. Box series and 1781 & 1785 Trapezoid Airtight IC Box, galv. NO HOLE.
Any hole size and shape upon request.