Marathon Ex-Flow Vent Black HDPE is a high-density polyethylene vent recommended for BUR and modified bitumen applications. It is available in a one-way or two-way application. One way option is a special one-way nitrile rubber valve that prevents...
Marathon Ex-Flow Vent Black HDPE is a high-density polyethylene vent recommended for BUR and modified bitumen applications. It is available in a one-way or two-way application. One way option is a special one-way nitrile rubber valve that prevents...
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