Charlotte Pipe Schedule 40 3 in. Hub x 4 in. Dia. Hub ABS Coupling is a durable plastic pipe fitting designed for reliable connections in drain, waste, and vent systems. This black ABS coupling is ideal for joining a 3 in. hub to a 4 in. diameter hub, making it a versatile solution for plumbing projects that require a transition between different pipe sizes. The schedule 40 ABS construction ensures strength and long-lasting performance, while the hub x hub design allows for easy installation and a secure fit. Perfect for both residential and commercial applications, this 3 in. to 4 in. coupling is compatible with standard ABS piping and is resistant to corrosion and chemical damage. The Charlotte Pipe brand is trusted by professionals for its quality and consistency, and this ABS 3 in. to 4 in. coupling fitting meets industry standards for safety and reliability. Use this schedule 40 ABS coupling to complete repairs, upgrades, or new installations with confidence, knowing it will provide a leak-free connection and dependable service in your plumbing system.