The STI KIT-06297A Surge Protection Module from Safety Technology International is designed to enhance your safety setup. This kit comes complete with a spacer and conduit block set, ensuring a secure and organized installation. It's specifically made to be compatible with STI-1210A and STI-1221A devices. Featuring an enclosed back box spacer, it allows for mounting around exposed conduit safely and efficiently. Upgrade your protection system effortlessly with this reliable and easy-to-install module. Don't miss out, invest in your safety today!