Elbow thru-hulls are the answer to the most common plumbing issues:

• Allow major room saving, as they can be used with a hose running along the hull.

• Avoid making a bend in the hose, which can sometimes be a source of leak or breakage.

• Require a simplified installation process inside the hull, carried out by one person only.

You can hold it firmly with one hand, while screwing with the other hand.