Fernco P1070-33 3-Inch by 3-Inch Flexible Coupling For Corrugated Pipe<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Coupling for corrugated pipe</li><li>Flexible</li><li>Mercury free thermostat</li><li>For use with heat pumps only</li><li>3-Inch x 3-Inch</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51f%2BuGFZtCL.jpg" noproxy>