Home » DIY Speaker Cabinet Parts » Acoustic Foam/Ports2 1/2 Acoustic Eggcrate FoamPrice: USD $11.95 Out of StockDescriptionSpecifications 2 1/2 eggcrate foam. Sold by the running foot, in 6ft long pieces. 1ft x 6ft is what you get when you order 1ft.. 12/6 fEARful cab requires 2 running feet. 15/6 fEARful cab requires 2.5 running feet. 1515/66 fEARful cab requires 3 running feet Product ReviewsNo Reviews For This Product.