Perfect for air, waters, fuels, oil, and inert lines, commonly used in hot / cold water systems, HVAC, transmissions, and engine applications Withstands extreme conditions, operating reliably at pressures up to 1200psi and temperatures ranging from 65°F to 250°F Features 1 / 2 " male threads on both ends for secure connection with 1 / 2 " female threaded pipes, ensuring leak proof joins in installations Make from good brasses materials for strength and resistance, ensuring under high pressures up to 1200psi and temperatures from 53 to 121°C This 3 inch brass nipple fitting is designed to connects 1 / 2 " threaded pipes, ideal for extending pipe lengths in various plumbing and HVAC systems, Manufacturer: Zeizafa