For safer fuse installation and operation, consider using a Traveller 12-Gauge ATO Heavy-Duty Fuse Holder. This in-line fuse holder helps keep your fuse protected with its durable, heat- and flame-resistant black TPV body. An IP67-rated rubber cap is also included with the fuse holder to offer further protection against harsh environments as well as to limit exposure to splashes and debris. It's compatible with ATO 25A and 30A fuses and is well-suited for air automotive and other heavy-duty applications. Two 4 in. wire leads of 12-gauge red wire complete the fuse holder for convenient reach. Satisfaction guaranteed.