PHCo’s Open Coil Pipe Insert Elements are available for 2-inch to 4-inch-diameter pipes, in lengths from 2 feet to 40 feet. These Lo-Density^® elements and can be custom-sized to match heating requirements and tank dimensions, and can be furnished for single- or three-phase, if required. The PHCo Pipe Insert Elements are ideal for new applications or for replacing existing pipe insert elements that have failed. They can also be used if electric requirements change and if different voltage, wattage or phase is needed. Elements are ETL-listed and are constructed of nickel chromium alloy coils that are supported by patented ceramic insulators. Process Heating Company stands behind its equipment, offering an industry-exclusive five-year element replacement guarantee. They require no maintenance other than an annual checkup.