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Description
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. Due to the many varying factors that can influence the CMA's effectiveness as a seal, Fernco does not warrant this product as a positive water seal. . Made of elastomeric PVC, is corrosion proof and is unaffected by acid or alkali. .Help eliminate leaks around pipes entering manhole walls. Concrete Manhole Adapters (CMA’s) are flexible enough to permit lateral pipe movement without destroying seal integrity. It is particularly useful for pipe to which concrete will not adhere, such as plastic pipe.
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