DIAMOND VENT SCREENS fit into the female end of PVC elbows and couplings, or in 2" and 3" concentric vents. They prevent squirrels, birds and other wildlife from entering the warm furnace end pipe ...
Should PVC schedule 40 pipe and fittings continue to be permitted for combustion exhaust venting? You and I have come across PVC that has gone from white to many colored shades: from light yellow to ...
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