This is extra cord length for your ELC controller. If ordering a new ELC controller and you require more that 25 or 50 feet (standard lengths), you can order additional feet here. Under quantity, put the amount of additional feet of cord you require.
All AquatiControl water level controllers come with a choice of 25 or 50 feet of cord. If 50 feet is not enough, you can order extra length to have the cord extend out to as much as 300 feet.
