The Rheem Adapter - 3/4 in. MALE NPT to 3/4 in. MALE ISO 228 is designed for seamless connections between different piping systems. This high-quality adapter is constructed from durable materials, ensuring long-lasting performance and reliability. It allows for easy integration of NPT and ISO 228 fittings, making it ideal for various plumbing applications. Perfect for both professionals and DIY users, this adapter enhances the versatility of your water heating system, ensuring efficient operation and compliance with industry standards.