CT(tm) Low Profile Mini ATM Fuse add a circuit Adapter Tap Dual Circuit Adapter Holder 12v Dc (pack of 3) Turns one fuse slot into two while providing protection for both circuits Durable High Quality Connectors for Years of Use. Inline Fuse Prevents Damage to your device. Easy DIY Installation, replace your existing fuse to this kit, and insert into the slot on your fuse box. For Micro Blade Fuses.