04-18-2015, 06:55 AM
Been very happy with our portable external, double protection since the built in one is OK. One wag said like wearing both a belt and suspenders and I know a few who do exactly that. Ours is Progressive EMS, not cheap but neither are repairs due to big surge. Here is a link to one source, there are probably others less expensive:
http://www.makariosrv.com/progressive-el...ems-pt50c/
http://www.makariosrv.com/progressive-el...ems-pt50c/
Gary and Susie
2005 47' Newell #729 4 slides DD 60 Allison 6 spd
2013 Ford F-150 3.5 crew cab, eco-boost twin turbo 4x4
2010 Ford Edge AWD
Black Labradoodle, "Dude"
http://nuevomexprimetime.blogspot.com
http://www.garyrgruber.blogspot.com