The 4" x 1-1/2" Bushing in Black from BOSHART INDUSTRIES INC is designed for connecting pipes of different sizes. This bushing allows for a smooth transition from 4 inches to 1-1/2 inches, ensuring a secure and leak-free connection. Constructed from durable materials, it is suitable for various applications, including plumbing and HVAC systems. The black finish provides additional corrosion resistance, making it ideal for both indoor and outdoor use. This bushing meets industry standards, ensuring reliability and performance in any installation.