The ProSelect PSW12325 4500 Watt Screw-In Heating Element is an electric water heater accessory designed for use with boilers. This heating element has a voltage of 240V and an amperage of 240V, providing efficient and powerful heating for your home. Made by ProSelect, a trusted brand, this element is easy to install and is ideal for indoor use. With a water connection size of 1-3/8”, this heating element is a reliable and durable choice for your water heating needs.