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Cast Iron-to-PVC Pipe Adapters for Drain, Waste, and Vent
These adapters connect PVC waste pipe to cast iron pipe without adding bulk. Instead of securing pipes together from the outside like clamp-on couplings, these flexible adapters fit into cast iron pipe to create a tight compression seal. Adapters should fit tightly—tap with a mallet to install. Made of PVC, these fittings won't corrode when exposed to water.
For technical drawings and 3-D models, click on a part number.
Straight Adapters, Male Socket Connect × Female Socket Connect

Adapter
- For Use With: Water
- Temperature Range: -30° to 140° F
- Specifications Met: ASTM D5926
Straight Reducing Adapters, Male Socket Connect × Female Socket Connect

Reducing Adapter
- For Use With: Water
- Temperature Range: -30° to 140° F
- Specifications Met: ASTM D5926
Female | ||||||||
---|---|---|---|---|---|---|---|---|
Male Pipe Size | Pipe Size | For Pipe OD | Lg. | Material | Color | Max. Pressure | Each | |
3 | 2 | 3 1/2" | 1 41/64" | PVC Plastic | Black | 4 psi @ 72° F | 0000000 | 000000 |