G.T. Water Products， Inc. TP46 Safe-T-Seal Test Plug， Fits 4-Inch to 6-Inch Pipes<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Fits 4-Inch to 6-Inch pipes</li><li>Non-slip rubber</li><li>Used to test water lines in new construction and renovation projects</li><li>A patented pressure release safety valve to help prevent over inflation or blow-out</li><li>Made in the U.S.A.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41hpAxior-L.jpg" noproxy>