To repair both the day and night shades of your dual shade system with a 1.25" tube outer diameter, you will require specific internal parts designed for these roller shades. Elkhart RV Parts offers the "Premium RV Day & Night Roller Shades | Slow-Rise™ Custom Window Treatment" which serves as a complete replacement for your existing shades. This product is available in multiple colors and is compatible with your shade system.

For assembly, detailed installation instructions are included with the product to guide you through the repair process even if you have not performed this type of repair before. These instructions cover how to properly install the internal components and ensure the shades operate correctly. For additional guidance or part availability and pricing, visiting the product page on elkhartrvparts.com or contacting their support team will provide further assistance.