1 x 6 Black Double Extra Heavy Seamless NippleThe 1" x 6" Black Double Extra Heavy Seamless Nipple is a durable, high strength pipe fitting designed for high pressure and high temperature applications. Made from seamless black iron, it provides superior structural integrity with no welds or weak points, ensuring long lasting performance. The extra thick wall construction (XXH) enhances pressure resistance, while the precision cut NPT male threads on both ends allow for secure, leak proof