Advanced Drainage Systems has released a new product that increases the effectiveness of a drainage catch basin or manhole by trapping debris, oil, sediment and other contaminants. Called the Nyloplast® EnviroHood Structure, it can be attached to the inside of a manhole or catch basin. Made from HDPE, the structure has a high strength-to-weight ratio due to its corrugated ribs. It is available in sizes to cover outlets from 12" to 30" and in models to fit round and flat concrete and Nyloplast structures.
Advanced Drainage Systems Inc.
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