Prefilled Electric Heated Towel Rail Manual Radiator Bathroom Ladder Flat Panel. Prefilled with a glycol solution. Our superior corrosion resisting towel rail is the perfect choice for your home. The beautiful smooth rails wrap from edge-to-edge.Our quality heaters are available in a wide range of sizes, featuring multiple bars to provide you with lots of heat output. This item is prefilled with a glycol solution to prevent corrosion, freezing as well as reduced noise and comes with Manual electric heating element, and is ready to install. Sign up for our newsletter. Due to courier restrictions, some areas require a surcharge. We look forward to doing business with you.