SWC PNY400 4in Zinc Pltd Stl Pip Cp

4in pipe cap bushings or pennies are used inside insulating bushings to cap off 4in EMT rigid and IMC conduits that are not in use. Garvin' bushing pennies prevent dust dirt rocks and debris from falling in the conduit and clogging the pipe. They save and protect conduits making them suitable for later use. They can later be used with pull line and other pre-inserted wire pulling aids. They are also zinc electroplated for excellent corrosion protection.