In Ceiling Speaker Vapour Barrier Back Bag 9"L x 9"H x 3.5"DWPLV0600
Vapour Barrier Back Bag
(9"w X 9"h X 3.5"d)
These flexible, durable, polypropylene vapor barriers meet all building code specifications and requirements.
When used on interior walls, these barriers work great for keeping dust and debris away from speakers and keypads.