The SEALFAST 3" Dust Plug is constructed from premium 316 stainless steel, offering superior corrosion resistance for harsh environments. This dust plug effectively seals unused ports in piping systems, safeguarding against contamination and ensuring optimal performance. With a size of 3", it fits standard connections, making it suitable for a variety of applications, including marine and industrial use. This dust plug meets stringent industry standards, ensuring reliability and durability in demanding conditions.