The 4MI-4FI Straight Fitting by Fittings Unlimited Inc is designed for efficient fluid transfer in various applications. This fitting features a 4-inch male iron (MI) to 4-inch female iron (FI) connection, ensuring a secure and leak-free fit. Constructed from durable materials, it is built to withstand high pressure and temperature, making it suitable for industrial use. Its straight design allows for easy installation and connection of pipes, while its compliance with industry standards guarantees reliability. Ideal for plumbing, HVAC, and other fluid transfer applications, this fitting is essential for any professional.