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Ridgid's Replacement Pipe Die NPT 2 1/2 to 4 in is a high-quality replacement part designed for professionals who need accurate, consistent threading on pipes ranging from 2 1/2 inches to 4 inches in size. Made of durable high-speed steel (HSS), this die set creates the perfect right-hand threading direction every time, ensuring a secure and long-lasting connection. Its nominal pipe size (NPS) range makes it ideal for a wide variety of applications, including plumbing, HVAC, and mechanical systems, while its 8 threads per inch provide exceptional strength and durability. Whether you're a professional contractor or DIY enthusiast, this Ridgid replacement pipe die is the perfect solution for all your threading needs.