BBieber0815 2016-10-05 21:21:46#1Yes, as mentioned, here plastic pipe (polypropylene?) and with us there are also no valves on it, only blanks (I assume that a controlled residential ventilation is meant).
Yes, as mentioned, here plastic pipe (polypropylene?) and with us there are also no valves on it, only blanks (I assume that a controlled residential ventilation is meant).