Battery Doctor Tapa Circuit (TM) ATO/ATC Dual Blade Fuse Holder w/o Fuse 30003 19-1598

Tapa-circuit turns one fuse slot into two. It plugs into occupied or vacant energized fuse black slot and provides one fuse holder to protect existing circuit, and a second fuse holder to protect new circuit. It has 5 inch 16 gauge wire.