![The Plumber's Choice Shielded 4 in. Cast Iron Transition Coupling Connects Copper H-38666 - The Home Depot The Plumber's Choice Shielded 4 in. Cast Iron Transition Coupling Connects Copper H-38666 - The Home Depot](https://images.thdstatic.com/productImages/af4ea56a-61e8-4512-86e9-5d0ad1e5e716/svn/black-the-plumber-s-choice-rubber-fittings-h-38666-1f_600.jpg)
The Plumber's Choice Shielded 4 in. Cast Iron Transition Coupling Connects Copper H-38666 - The Home Depot
![The Plumber's Choice Shielded 3 in. Cast Iron Transition Coupling Connects to Copper H-38555 - The Home Depot The Plumber's Choice Shielded 3 in. Cast Iron Transition Coupling Connects to Copper H-38555 - The Home Depot](https://images.thdstatic.com/productImages/a5817711-6b74-4d9b-b4d2-0d8f2bfeccb4/svn/black-the-plumber-s-choice-rubber-fittings-h-38555-64_1000.jpg)
The Plumber's Choice Shielded 3 in. Cast Iron Transition Coupling Connects to Copper H-38555 - The Home Depot
![The Plumber's Choice Shielded 3 in. Cast Iron Transition Coupling Connects to Copper H-38555 - The Home Depot The Plumber's Choice Shielded 3 in. Cast Iron Transition Coupling Connects to Copper H-38555 - The Home Depot](https://images.thdstatic.com/productImages/b9618b85-2313-45b0-ad2d-e6c53daf6110/svn/black-the-plumber-s-choice-rubber-fittings-h-38555-1f_600.jpg)
The Plumber's Choice Shielded 3 in. Cast Iron Transition Coupling Connects to Copper H-38555 - The Home Depot
![The Plumber's Choice Shielded 8 in. Steel Transition Coupling Connects Cast Iron to Plastic or Extra Heavy Cast Iron H-38122 - The Home Depot The Plumber's Choice Shielded 8 in. Steel Transition Coupling Connects Cast Iron to Plastic or Extra Heavy Cast Iron H-38122 - The Home Depot](https://images.thdstatic.com/productImages/b11db99f-5b60-44be-a9ee-95f7ad68b25f/svn/black-the-plumber-s-choice-rubber-fittings-h-38122-c3_600.jpg)
The Plumber's Choice Shielded 8 in. Steel Transition Coupling Connects Cast Iron to Plastic or Extra Heavy Cast Iron H-38122 - The Home Depot
![plumbing - Pros and cons of coupling vs. threaded when transitioning from copper to PVC - Home Improvement Stack Exchange plumbing - Pros and cons of coupling vs. threaded when transitioning from copper to PVC - Home Improvement Stack Exchange](https://i.stack.imgur.com/7PkOB.jpg)