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2.8 oz Tube of Red Devil High Temp RTV Silicone. Perfect for Gasket replacement. Not for Heat Exchangers.
For those in need of reliable DuroGuard furnace adhesive silicone sealant, Repair Clinic offers genuine OEM parts that ensure a perfect fit and long-lasting performance. Our silicone sealant is ideal for gasket replacements and small repairs, providing a durable solution that withstands high temperatures. Recognized for its effectiveness, DuroGuard silicone sealant is specifically designed for furnace maintenance, enhancing the system's efficiency and safety. While not suitable for heat exchangers, it is perfect for sealing and other minor repairs. Trust Repair Clinic for your furnace part needs and enjoy same-day shipping and expert support. For those dealing with common furnace issues, such as not heating or blower problems, our extensive library of maintenance tips and troubleshooting guides can assist in resolving these challenges. Explore our resources to keep your furnace working optimally.
Ensure your furnace repairs are completed swiftly with our DuroGuard Furnace Silicone Sealant, available for same-day shipping. Whether you're dealing with a leaky gasket or a minor sealant repair, ordering by 9:00 PM ET guarantees your adhesive arrives promptly, minimizing downtime and restoring your furnace's efficiency. This high-temperature RTV silicone is ideal for gasket replacements, providing a reliable seal to withstand furnace heat. Count on Repair Clinic for your adhesive needs, backed by a commitment to fast delivery and genuine OEM parts. Our extensive resources empower DIYers and professionals alike to tackle furnace repairs confidently and efficiently. For more HVAC solutions and parts, explore our HVAC Parts page.


Shop for DuroGuard Furnace Silicone Sealant parts online with confidence, knowing you have a No-Hassle 365-Day Return Policy. Whether you're a DIY enthusiast or a professional technician, our user-friendly parts lookup by model or part number ensures a seamless ordering process. Plus, benefit from our Price Match Guarantee on all genuine OEM replacement parts, ensuring you never overpay. Our same-day shipping option means that your replacement parts arrive quickly, so you can address furnace issues like gas leaks or weak seals without delay. Repair Clinic is your trusted partner for DuroGuard silicone sealant and other heating and cooling needs, offering peace of mind with support from trained technicians 7 days a week.
Identifying your furnace model number is essential for finding compatible parts and accurate repair help. Watch this video for tips on locating the model number, and visit our website's furnace repair section for troubleshooting tips, part testing guides, and part replacement videos tailored to your specific furnace.

Need help finding the right furnace parts? Repair Clinic's trained customer care specialists are available 7:00 AM to midnight EST, seven days a week. Whether you have questions about part compatibility or need assistance placing an order, our experts are here to help. The Repair Clinic customer care team is dedicated to ensuring your furnace is back in working order quickly and efficiently.

A furnace that fails to ignite can leave your home in the cold. Common issues include a faulty igniter, malfunctioning flame sensor, or a defective draft inducer fan motor. Replacing furnace filters and cleaning furnace parts can help prevent these problems.

Learn why your furnace isn't working by understanding its ignition sequence and identifying common faulty parts like the igniter, flame sensor, or control board. This article provides practical repair tips and insights into each component's role in the heating process.

A gas furnace that starts and then stops unexpectedly can be frustrating, especially during cold weather. This article explains five common causes, including issues with the flame sensor, pressure switch, control board, draft inducer fan motor, or air flow. Learn how each cause may impact your furnace's operation and get tips to resolve the problem.