Charlotte Pipe Schedule 40 DWV Reducing PVC Coupling, 3 In. Hub x 1-1/2 In. Hub is a versatile fitting designed specifically for use in Drain, Waste, and Vent (DWV) systems. Crafted from durable PVC material, this coupling is i for joining pipes of different sizes in various DWV applications. Its hub x hub configuration allows for easy solvent welding, ensuring a secure and reliable connection. This coupling is an excellent choice when you need to connect pipes with varying diameters to maintain proper flow and drainage in your plumbing system. Model Number: PVC 00102 0800HA