Sierra TC43604 Polerized Pole ConnectorFeatures:TYPE: 2 Pole Polarized Round ConnectorThese polarized connector sets plug together only one way to prevent cross connectionsConstructed of rugged plastic with molded-in terminals for durabilityWire connections are easy and fast with just a screwdriverSoft, pliable rubber caps protect the rear of each connectorSold only in mating pairsInterchange:Cole-HerseM-121BPValmar31592