The Seifert KL-139/1000/M with heatsink is an extruded aluminum heater with natural anodized fins. It features a length of 1000mm, a width of 190.5mm, and a height of 50mm. It is designed with a grilled area to provide for better air circulation, allowing for efficient cooling and heat dissipation. This helps to reduce overall operating temperatures, prevent component failure, and increase the life of the equipment. The included heatsink also adds to the thermal performance, allowing maximum cooling of hot components and preventing hot spots. This part is suitable for a wide range of applications, making it ideal for industrial, commercial, and residential settings.