Introduction
The Frost King Drain Away Automatic Downspout Extender is designed to divert rainwater away from your home's foundation. This flexible vinyl extension unrolls automatically when it rains and retracts when dry, providing a convenient and tool-free solution for managing water runoff. This manual provides instructions for proper installation, operation, and maintenance to ensure optimal performance.
Safety Information
- Always exercise caution when working around your home's exterior, especially on ladders if required for downspout access.
- Ensure the area where the extender will be placed is clear of obstructions and trip hazards.
- Keep out of reach of children and pets during installation.
- Do not attempt to modify the product. Use only as intended.
Package Contents
Each package contains:
- Frost King DE46WH 46" x 8.5" White Flexible Automatic Downspout Extender (Quantity as purchased, e.g., 6 units)

Image: A single Frost King Drain Away Downspout Extender, rolled up, showing its compact form before installation.
Setup and Installation
The Frost King Drain Away Downspout Extender is designed for easy, tool-free installation.
- Prepare the Downspout: Ensure the bottom opening of your existing downspout is clear of debris. The extender is designed to fit all standard downspouts.
- Attach the Extender: Slide the opening of the Frost King Drain Away Extender over the bottom end of your downspout. The flexible material should create a snug fit. No tools or fasteners are typically required.
- Position the Extender: Lay the rolled-up extender flat on the ground, ensuring it points away from your home's foundation in the desired direction for water runoff. Make sure there are no immediate obstructions in its path.

Image: A Frost King Drain Away Downspout Extender installed at the base of a white downspout, resting on a gravel bed next to a stone wall, demonstrating proper placement.
Operating Instructions
The Frost King Drain Away Extender operates automatically:
- During Rain: When rainwater flows down the downspout and into the extender, the weight and pressure of the water will cause the flexible vinyl extension to unroll, directing the water away from your foundation.
- After Rain: Once the rain stops and the water drains out of the extender, it will automatically roll back up to its compact position. This keeps your yard tidy and prevents the extender from becoming a tripping hazard.
Maintenance
To ensure the longevity and effective operation of your downspout extender, consider the following maintenance tips:
- Regular Inspection: Periodically check the extender for any signs of damage, such as tears, splits, or blockages.
- Clear Debris: Ensure the opening where the extender connects to the downspout, as well as the extender itself, remains free of leaves, twigs, and other debris that could impede water flow or prevent it from rolling up properly.
- Cleaning: If necessary, clean the extender with mild soap and water to remove dirt or mildew. Rinse thoroughly.
- Winter Care: In freezing conditions, ensure the extender is clear of ice and snow to prevent damage when it attempts to unroll or retract.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Extender does not unroll or roll back up automatically. |
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| Water is not draining effectively or pooling near the foundation. |
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| Extender appears to be splitting at the seams. |
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Specifications
- Model Number: DE46WH
- Material: Flexible Vinyl (Plastic)
- Color: White
- Dimensions (L x W x H): 46 x 9 x 0.1 inches (unrolled)
- Weight: Approximately 10.4 ounces per unit
- Compatibility: Fits all standard downspouts
- Manufacturer: THERMWELL PRODUCTS CO INC (Frost King)
Warranty Information
Specific warranty details for the Frost King DE46WH Downspout Extender are not provided in the product information. For warranty inquiries, please contact Frost King customer support directly.
Support
For further assistance, questions, or to report issues, please visit the official Frost King website or contact their customer service department. You can often find contact information on the product packaging or through the brand's official online presence.
Frost King Official Store: Visit the Frost King Store on Amazon