2 Convoluted Charcoal Egg Crate Acoustic Soundproofing Foam 82"x 54"x 2-1/2"

2-1/2" Convoluted. Made in the USA, 1.8 lb Density and ILD of 70 (WEDGE NRC.80 OVERALL) (PYRAMID NRC. 70 OVERALL). NRC at 500 HZ. NRC at 1000 HZ. NRC at 250 HZ.

eBay