Choose from plastic twist lock or threaded fuse holder cases to match your amperage requirements.Each In-Line Glass Tube Style Fuse Holder includes a wire loop and an SFE fuse.ModelSierra Part #HolderWire LoopIncluded Fuse10514685FS45400White Twist Lock16 gauge10A SFE10514651FS45360Red Twist Lock14 gauge14A SFE10514727FS69100Black Twist Lock14 gauge15A SFE10514677FS45390Black Threaded12 gauge20A SFE10514735FS69110Black Twist Lock14 gauge20A SFE10514644FS45350Black Twist Lock14 gauge20A SFE4490587FS45380Black Threaded12 gauge30A SFE10476331FS69120Heavy-Duty Black Twist Lock12 gauge30A SFE