I have a Guest model 2433 galvanic isolator for sale, removed in working condition. Diode tester reads 0.72-0.73 and it is in good cosmetic condition. Date of manufacture is March, 2003. Be advised this is an older model so it does not have the status monitoring. This can be yours in exchange for a portrait of Ulysses S. Grant. I'm in Palm Beach and planning to head south to Fort Lauderdale and beyond. Or I can ship it to you for the cost of the service of your choice, FOB West Palm Beach. (For the curious, this item was obsoleted on my boat by an isolation transformer. You really need one or the other if you use shore power.) -Sean m/y Vector lying Palm Beach, FL http://OurOdyssey.BlogSpot.com