7 conductor, 20 AWG

Red and black 2 wire R/OM type

Due to the very low current used in overfill systems it's extremely important to use the correct type of cable. The use of other types of cabling often leads to failed overfill systems due mostly to corroded connections. FloTech cable is specially produced with tin plated wire, which when connected correctly using crimp connections, will provide years of trouble free service.