<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_ym19_1_1476879508634_2745" dir="ltr">Hi Hugh,</div><div id="yui_3_16_0_ym19_1_1476879508634_2745" dir="ltr">What does your Com Sub have for vent valves. Are they electric?</div><div id="yui_3_16_0_ym19_1_1476879508634_2745" dir="ltr">Hank</div></div></body></html>