Universal 5000W Electric Duct Heater Re-String Kit - Replacement Part #DH500, for Air-Over Heating Applications

Looking for a reliable replacement re-string kit for your duct electric strip heater or air-over heating system? Choose this DH500 Re-String Kit, engineered for versatile use in duct heaters, furnaces, and auxiliary inserts in heat pumps.This kit features a high-performance heating coil rated at 5000 Watts (240V) and 3750 Watts (208V), with an 11/32" outer diameter that delivers consistent heat output for air-over applications. The coil has an unstretched length of 21-1/2", with a flexible stretch range of 40" (minimum) to 125" (maximum) to fit a variety of heater and duct sizes. Each end of the coil is equipped with 10-32"×1-3/4" screw solder terminals for secure electrical connections.The complete kit includes all necessary installation components: 4 ceramic insulators for heat-resistant mounting, 4 nuts and 4 washers for secure fastening, a 300°F in-line fuse for overheat protection, and a connection link for circuit completion. Designed for user-friendly DIY installation, it requires basic electrical tools — simply mount the ceramic insulators, stretch the coil to the required length, secure it with the hardware, connect the screw solder terminals to the power supply, and install the in-line fuse for safety.Before purchase, confirm your heating system’s voltage and size requirements to ensure compatibility. Upgrade your air-over heating system with this premium replacement Re-String Kit for efficient and stable heat output.Customer satisfaction is our top priority. If you encounter any fit or performance issues, contact us directly for a prompt and satisfactory solution.

• Suitable for all air-over heat applications including duct heaters, furnaces, auxiliary inserts in heat pumps; compatible with systems matching 5000W/240V or 3750W/208V power specifications.
• Direct replacement re-string kit for part #DH500; serves as a universal upgrade for worn or burnt-out heating coils in duct electric strip heaters and air-over heating systems.
• Dual-power rating (5000W/240V, 3750W/208V); flexible 40"-125" stretch range for versatile fitting; complete installation kit with ceramic insulators and overheat fuse; 10-32" screw solder terminals for secure wiring; heat-resistant components for long-term use; suitable for multiple air-over heating devices; easy DIY installation.
• Replaces worn, burnt-out, or low-efficiency heating coils; fixes insufficient heat output, uneven heating, heater failure, overheating risks; eliminates system downtime and cold air blowing; restores efficient and stable heat supply for duct and furnace systems; avoids costly heating equipment repair or replacement.
• Premium 5000W Duct Heater Re-String Kit—complete accessory set, flexible stretch design, overheat protection fuse, durable for long-term air-over heating use; shop with confidence for reliable HVAC parts; trusted replacement for hassle-free heating system maintenance.