PROwatt SWInline Transfer RelayAn easy to mount 15A Inline Transfer Relay provides switching between shorepower and inverter AC source. It comes with a power plug for convenient connection to the inverter GFCI and a hardwire cord for the AC input and output interface. It is available as an accessory to the Prowatt SW product line.WARNING This product can expose you to chemicals including Diisononyl Phthalate DINP which is known to the State of California to cause cancer, and Di-isodecyl Phthalat