2 1/2 x 11 Schedule 80 Seamless Black NippleThe 2 1 2" x 11" Schedule 80 Seamless Black Nipple is a durable pipe fitting with a 2 1 2 inch outer diameter on one end and an 11 inch outer diameter on the other. Made from seamless carbon steel, it offers high strength and resistance to leaks. The Schedule 80 wall thickness provides increased pressure resistance, while the black finish ensures corrosion protection. Ideal for use in high pressure fluid, gas, and industrial systems. Specification