ADS is a solid, forward thinking, company with typically good products. This product is no doubt intended to compete with the corrugated metal product mentioned above. Whether or not this particular product is the best for you has much to do with the intended application. I can tell you that with this type of slot drain (slot incorporated into pipe) that the concrete backfill is the largest part of the 'structure'. I'm guessing that the ADS product is costlier than a similarly sized corrugated metal pipe structure - the benefit being HDPE's non-corrosiveness and N-12's lower coefficient of roughness (smooth bore). One key to keeping a slot drain operational is designing it with sufficient enough slope that debris will wash clear rather than accumulate.afn said:i'm interested in using a slot channel, not sure on the look but coud be OK. It is called Duraslot. Does anyone have any experience using it? i'm concerned the slot might be a bit under engineered and may not last long?