FeaturesVaportight seal1/2 in offset flange to ensure a flush fit in 1/2 in drywallPre-drilled flanges for additional mounting optionsV-clamps provide self-clamping cable entryMounting means angled side nails for rapid installationFor new work constructionNon-metallic sheathed cable wiring systemWill not shatter when cold or distort in heatWithout knockout