Maypole 7 Way Bypass Towing Relay 15Amp For 12v Towing Towbar Wiring - MP3877
Maypole MP3877 12V 7 Way Bypass Relay. MP3877 12V 7 Way Bypass Relay. The relays do not put any extra load onto the vehicles lighting system. The relays also feature a built in audible buzzer that monitors the trailer and caravan indicators.