Weatherproof Bass Blockers for 3.5 3 1/2 Inch Installer 3 Pack<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Installer Jobber 3 Pack </span></li><li><span class="a-list-item"> Guaranteed +/- 10% Tolerance， Weatherproof </span></li><li><span class="a-list-item"> Axial Leads， Non-Polar 10% Capacitor </span></li><li><span class="a-list-item"> Blocks Sounds Below 2.8kHz (14 mfd @ 4 ohm)， Reduces the drive signal </span></li><li><span class="a-list-item"> 3.5" 3 1/2" Speaker Size Recommended although can be used for any application. The speaker size is our recommendation please be sure you want to block sounds below 2.8kHz. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/411Q-uMX8HL.jpg" noproxy>