Tighten shower arms, etc.
When installing a shower arm or hand held hose wall elbow, thread a ½" coupling onto the male ends and select the appropriate size pipe nipple to use as a lever.

It will save your finishes from wrench scratches and will make a tight, leak-proof seal without crushing or damaging the fixture.

You can use different size nipples for more or less leverage, and select a smaller nipple for tightening in a confided space such as an adjacent wall or shower door.

This method can also be used to remove the fixture.

David E. Tancredi
Tancredi Plumbing & Heating Contractors
Basking Ridge, New Jersey