If you are looking for a simple control solution for your heaters, the Eurofase duplex switches are the way to go! The Eurofase switch line has undergone extensive testing and the switches are designed to provide the ability to control the heat output for each heating element independently; this functionality will provide real time HI/LO control for each element on Eurofase heaters. If you have any questions or installation concerns, please reach out to our knowledgeable sales teams prior to purchasing. The Eurofase switches are built to pair seamlessly with all dual element Eurofase heaters. In the rare event that a switch is either defective during the warranty period or not compatible with your heater, we will happily replace it at no charge. Our return policy for Eurofase switches is to provide you a credit that can be applied towards a future purchase.