STI's 3 in. SpecSeal® Global Watertight Cast-In Firestop Device for Up to 8-Inch Concrete Pour features advanced global watertight technology that incorporates a resilient, factory-installed internal water seal directly out of the box. This specialized construction eliminates the requirement for additional field-applied sealants while delivering a code-compliant water rating to protect vulnerable lower levels from moisture migration or pooling water during construction or building operation. Designed to seamlessly handle floor depths up to 8 in., this durable polypropylene device accommodates both plastic and metallic penetrants, providing critical installation flexibility and reliable structural safety on commercial jobsites.