Problem: Several years ago, a Minneapolis city inspector needed to replace old, damaged cleanout plugs in a municipal building pipe with deteriorated threads.

Solution: The inspector chose flush-fitting Real-Tite Plugs expansion cleanout plugs. 

Result: The plugs sealed behind and over the damaged threads of the pipe, ensuring a leak-proof seal that has remained leak-free for several years. 800-877-0610; www.real-titeplugs.com