203544 Newmar Galvanic Isolator Newmar GI30 Sacrificial zincs corrode away as they protect metal thru hulls, shafts and props from damaging electrolysis. Stray, low voltage current flowing between the AC safety ground and DC bonding system is  

203545 Newmar Galvanic Isolator Newmar GI50 Sacrificial zincs corrode away as they protect metal thru hulls, shafts and props from damaging electrolysis. Stray, low voltage current flowing between the AC safety ground and DC bonding system is  

258147 ProMariner ProSafe FS Galvanic Isolator - 30 Amp ProMariner 22034 ProMariner ProSafe FS 30 Amp Galvanic Isolator
Shore Cord Inlet Compatibility: Single 15, 16, 20 or 30
ProSafe FS installs easily and does not require a dedicated monitor to verify the  

258148 ProMariner ProSafe FS Galvanic Isolator - 60 Amp ProMariner 22074 ProSafe FS 60 Amp Galvanic Isolator
Shore Cord Inlet Compatibility: Single 50 or Dual 15's, 16's, 20's or 30's
ProSafe FS installs easily and does not require a dedicated monitor to  

204577 Yandina Galvanic Isolator Yandina GI50N Features:
• 50 amps AC continuous rating (30 amps DC)
• Use on any shore power connection up to 50 amps
• Only one required for dual 30 amp connections
 

202474 Yandina GI+ Galvanic Isolator for Aluminum Boat Yandina GI+ Features:
•The Yandina GI+ Galvanic Isolator PLUS for Aluminum Boats, blocks electrolysis currents from flowing in the ground conductor of your shore power hookup