![Fernco 1056-22 2-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Brown - Amazon.com Fernco 1056-22 2-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Brown - Amazon.com](https://m.media-amazon.com/images/I/61o3tJSuiZL.jpg)
Fernco 1056-22 2-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Brown - Amazon.com
![plumbing - Cast Iron to ABS - exterior of cast iron not smooth - how to stop leak at coupling? - Home Improvement Stack Exchange plumbing - Cast Iron to ABS - exterior of cast iron not smooth - how to stop leak at coupling? - Home Improvement Stack Exchange](https://i.stack.imgur.com/8p835.jpg)
plumbing - Cast Iron to ABS - exterior of cast iron not smooth - how to stop leak at coupling? - Home Improvement Stack Exchange
![Fernco 1056-44W 4-inch Flexible Pipe Coupling Plumbing Plastic PVC ABS, Cast Iron, Lead in White - Amazon.com Fernco 1056-44W 4-inch Flexible Pipe Coupling Plumbing Plastic PVC ABS, Cast Iron, Lead in White - Amazon.com](https://m.media-amazon.com/images/I/51EKuTcDhcL._AC_UF894,1000_QL80_.jpg)
Fernco 1056-44W 4-inch Flexible Pipe Coupling Plumbing Plastic PVC ABS, Cast Iron, Lead in White - Amazon.com
![Fernco 1056-42 Reducing 4-in. x 2-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Black - GreyDock.com Fernco 1056-42 Reducing 4-in. x 2-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Black - GreyDock.com](https://www.greydock.com/media/catalog/product/cache/7ca80b04214a71f2fa2d73037fea8bdd/1/0/1056-42_1.jpg)
Fernco 1056-42 Reducing 4-in. x 2-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Black - GreyDock.com
![Somebody actually connected ABS directly to cast iron with lead and oakum. A lot more work to do it wrong than to just use a no-hub coupling. : r/Plumbing Somebody actually connected ABS directly to cast iron with lead and oakum. A lot more work to do it wrong than to just use a no-hub coupling. : r/Plumbing](https://i.redd.it/l42qtwz9rah51.jpg)
Somebody actually connected ABS directly to cast iron with lead and oakum. A lot more work to do it wrong than to just use a no-hub coupling. : r/Plumbing
![plumbing - Why did my plumber use a cast iron to plastic coupling in one location, but not in the other? - Home Improvement Stack Exchange plumbing - Why did my plumber use a cast iron to plastic coupling in one location, but not in the other? - Home Improvement Stack Exchange](https://i.stack.imgur.com/BUSkq.jpg)
plumbing - Why did my plumber use a cast iron to plastic coupling in one location, but not in the other? - Home Improvement Stack Exchange
![ABS Soil Pipe Adapter - Hub x Spigot (Cast Iron - Hub x DWV Spigot) - 1-1/2" x 3" | Fittings N' Valves ABS Soil Pipe Adapter - Hub x Spigot (Cast Iron - Hub x DWV Spigot) - 1-1/2" x 3" | Fittings N' Valves](https://fittingsnvalves.com/cdn/shop/products/abs-soil-pipe-adapter-hub-x-spigot-cast-iron-hub-x-dwv-spigot_49e94b5a-ab9a-42e5-9e3f-93f19a818f11.jpg?v=1661637847)
ABS Soil Pipe Adapter - Hub x Spigot (Cast Iron - Hub x DWV Spigot) - 1-1/2" x 3" | Fittings N' Valves
![Just paid a plumber to replace all cast iron to ABS all the way to the city main. Is it common and to code to use flexible couplings after every Ptrap on Just paid a plumber to replace all cast iron to ABS all the way to the city main. Is it common and to code to use flexible couplings after every Ptrap on](https://i.redd.it/j3np892rp1381.jpg)