The SEALFAST 4" Dust Cap is made from 316 stainless steel, providing exceptional corrosion resistance and durability. This dust cap is designed to protect open ends of pipes and fittings from dust, debris, and moisture, ensuring the integrity of your system. The 4" size is compatible with standard fittings, making it a versatile choice for various industrial applications. This cap meets industry standards for quality and safety, making it an essential component for maintaining clean and efficient operations in your facility.