Compatible 520900 Screw‑In Water Heater Element — 1440W, 120V (replaces 520789 / SU520789 / 232794) Key benefits Reliable heating: 1440W at 120V delivers fast, efficient water heating while keeping power draw appropriate for RV electrical systems. Longer service life: Built from quality materials designed to withstand higher operating temperatures, resist corrosion and mineral buildup, and reduce premature failures. Easy maintenance: Screw‑in design and included gasket make replacement quick and simple—no need to disassemble large parts or hire a technician. Compatibility Direct replacement for part numbers: 520900, 520789, SU520789, 232794. Designed for Suburban RV and Camper SW Series water heaters, including but not limited to: SW4DE, SW4DEL, SW6DE, SW6DEC, SW6DEL, SW6DELC, SW6DEM, SW6PE, SW6PER, SW10DE, SW10DEC, SW10DEL, SW10DELC, SW10DEM, SW10PE, SW10PER, SW10VE, SW12DE, SW12DEC, SW12DEL, SW12DELC, SW12DEM, SW12VE, SW16DE, SW16DEC, SW16DEL, SW16DELC, SW16DEM, SW16VE. Features Form factor: Screw‑in element for straightforward installation and removal. Includes gasket to ensure a proper seal and prevent leaks after installation. Designed to perform in RV and camper environments, including areas with hard water where mineral deposits are common. Why choose this element Practical upgrade or replacement: Offers a balance of heating performance and durability for RV owners who need reliable hot water on the road. Reduces downtime: Fast swapin replacement reduces time without hot water and lowers maintenance costs. Hardwater resilience: Material choices and design help limit scale buildup and corrosion, extending the usable life of the water heater. Typical use scenarios a failed element at a campsite or storage facility without specialized tools—swap the screw‑in element and gasket to restore hot water quickly. Upgrade an aging or frequently failing element on an RV used in hardwater areas to reduce repeat maintenance. Keep as an emergency spare for long trips or seasonal travel to avoid service interruptions and campsite inconvenience. What's included One screw‑in 1440W, 120V heater element (compatible with 520900 / 520789 / SU520789 / 232794) One installation gasket Notes Confirm compatibility with your specific Suburban SW Series model before . Installation typically requires basic hand tools; follow manufacturer safety guidelines and power isolation procedures.