It is an evergreen tree or large shrub growing to 10–18 m tall, with a trunk up to 60 cm diameter. 

The tradeoff with the thicker walls is that the inner diameter of the pipe is smaller than schedule 40 of the same nominal size so, in theory, it can handle a little less flow. 

You don't go to the grocery store looking to buy oranges that are only 3 inches in diameter and weight 5 oz. 

The magox blend does the opposite and actually sequesters CO2 over it's lifespan.The required footprint for installation is roughly 25' x 25' however the structure is roughly 20" in diameter and approximately 18' tall. 

This fan duct should be terminated to the exterior.11) CRAWL SPACE: A) There is a 5 foot diameter hole, and about 18 inches deep, in the ground under the center of the southfoundation wall.

Now there is a 5inches diameter white stain on the countertop.

It had become so corroded and consequently gummed up with sludge, that the diameter was no more than 3/4".So, the point of this story is to provide some visual insight into why galvanized pipes are a risk exposure.

The light on the box is the diameter of a pencil eraser, and it's not bright at all. 

So a small 8" natural gas pipeline has been converted to a large diameter high pressure pipeline that is carrying a more volatile, explosive material which can't be detected by smell. 

My tenants informed me on Wednesday, (2 days ago) by text that they think there is a leak in the roof above the master bathroom and sent a picture of what looks like a slight bubble in the sheetrock paint about 2.5 inches in diameter.