The 4" Poly Banjo Dust Plug from Sealfast is designed to protect your systems from dust and debris. Made from durable poly material, this dust plug ensures a secure fit and long-lasting performance. With a standard 4" size, it is compatible with various banjo fittings, providing an effective seal. This product meets industry standards for safety and reliability, making it an essential component for maintaining system integrity. Ideal for professionals looking to safeguard their equipment, this dust plug is a practical solution.