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- Concrete Manhole Adapters (CMA's) are flexible enough to permit lateral pipe movement without destroying seal integrity. It is additionally useful for pipe to which concrete will not adhere, such as plastic pipe. The CMA is made of elastomeric PVC, is corrosion proof and is unaffected by acid or alkali, however the CMA is subjected to many various conditions that are beyond the manufacturers control. High ground water tables, quality of grout, workmanship and field conditions can affect its ability to seal. Discretion must be used in its application and installation.
Fernco® Concrete Manhole Adapter, Fitting/Connector Type: Adapter, 12 in Nominal, PVC, 11.84 in ID x 13.12 in OD x 1.63 in H
- Engineered to stop leaks around pipe penetrating manhole walls
- Flexible gasket allows pipe to move without breaking grout
- Flexible gasket is compatible with grout and concrete
- Flexible gasket will not rot or deteriorate
- Fitting / Connector TypeAdapterMaterialPVCNominal Size12 inDimensions11.84 in ID x 13.12 in OD x 1.63 in HManufacturerFerncoManufacturer #12CMA