Big Northern Units

We usually sell our large M units up north as there are a lot of old homes up there with the old cast iron 4 inch vents. In fact, we have come across 5 inch pipes, which haven’t been made since the 40’s from what I can tell. Anyway, due to the snow we provide these with the screen removable as there is not a frog problem in toilets north of the Mason Dixon line and we don’t want it becoming a snow shelf during heavy snow. Some customers want it, some don’t.