18 '' x 22 '' large. For sump and sewage. of non-corrosive polyethylene. go past tightly fits lids and protects screws. For lid, # s 4095972 -LRB- foam -RRB-, 4012621 -LRB- poly -RRB-, or 4186524 -LRB- steel -RRB-. One year. .. .
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