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🌿 Keep your foundation dry and your curb appeal high with effortless style!
The Frost King DE300 is a 12-foot green plastic downspout extender that automatically unrolls during rain to divert water away from your foundation. It installs easily without tools, trims to any length, and features a durable matte finish for a modern look. Lightweight and removable, it’s designed for efficient water management and easy seasonal storage.



| ASIN | B003K1GKCS |
| Additional Features | Removable |
| Best Sellers Rank | #16,072 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Gutter Downspouts |
| Brand | Thermwell |
| Brand Name | Thermwell |
| Color | Green |
| Customer Reviews | 3.5 out of 5 stars 2,082 Reviews |
| Finish Type | Matte |
| Finish Types | Matte |
| Fits Hole Size | 3 Inches |
| Global Trade Identification Number | 00077578057576 |
| Included Components | Frost King DE300 Standard Plastic Drain Away Downspout Extender, Extends 12-Feet, Green |
| Item Depth | 7 inches |
| Item Type Name | Frost King DE300 Standard Plastic Drain Away Downspout Extender, Extends 12-Feet, Green |
| Item Weight | 13.61 g |
| Manufacturer | THERMWELL PRODUCTS |
| Manufacturer Contact Information | 1-800-526-5265 |
| Manufacturer Part Number | DE300 |
| Manufacturer Warranty Description | Warranty. |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | DE300 |
| Number of Items | 1 |
| Product Style | Modern |
| Special Feature | Removable |
| Style | Modern |
| UPC | 077578057576 |
| Unit Count | 1.0 Count |
M**K
It functions as expected and very helpful.
Good in cost and functionality
N**X
It is cheapo plastic and will never work as advertized
OK. First, it looks NOTHING like the picture. In the picture, it has an end cap that seals. In the picture, it does not have holes all the way down the plastic. In the picture, it looks like flexible, yet sturdy plastic. What I got was cheap plastic not much thicker than a gallon Ziploc bag. It will last about a week in the sun and weather. Because it had not anchor at the end, it would also just blow around and be worthless. There is no simple way to roll this up. It will just unroll itself. Do not recommend & I returned. Cheap, and badly designed. I would have paid $15 dollars for something I could have used.
N**)
It actually worked for me
SO I bought this in anticipation of heavy rains from Florence. Glad I did. It helped move untold gallons across my driveway and away from the house. It is a little odd in that it does not completely unroll at first and it is hard to see it working. However I can state that it truly does as evidenced by the lack of water in front of my garage door. One extra bonus is that it acts like a bit of a water diverter too. Water that was rolling down my driveway was redirected by this device in addition to moving the gutter water.
E**A
Ok product!
Works, but is not very durable. After a few windy rains, it got ripped up on the downspout.
G**I
free delivery
Great product as described, good price, fast delivery.
B**P
Flimsy. Doesn’t retract.
Flimsy / thin material and it doesn’t retract. Not what I was expecting.
J**C
Does some heavy lifting before it is made to disappear
Boy did this little buddy hit the spot. We have a small enclosed courtyard and having unsightly extended bulky tubing running across it during heavy rains is a visual blight and a challenge to store. But this, it works perfectly and just rolls up for easy camouflage and tucking behind containers. This is why I love Amazon. I had no idea something like this existed until it popped up when queried.
M**.
Downspout Disappointment: A Downspout Extender That Doesn't Drain Away Your Troubles!
Introducing the Frost King DE300 Standard Plastic Drain Away Downspout Extender – a product that, unfortunately, does not live up to expectations. While it claims to extend up to 12-feet and help direct water away from your home, this downspout extender may be more of a headache than a help. Let's explore the downspout disappointment that is the Frost King DE300. Pros: Affordable: The Frost King DE300 is a budget-friendly option, which may be appealing to those looking for a quick and inexpensive solution to their downspout needs. Cons: Poor water management: This downspout extender fails to effectively manage water flow, leading to potential issues with water stagnation and algae growth. Environmental concerns: The stagnant water can create an unhealthy environment for local wildlife, such as frogs and lizards, potentially leading to harm or even death. Durability issues: The Frost King DE300's construction is not as robust as other options on the market, leading to potential damage or breakage over time. Installation difficulties: Users may experience challenges with properly installing the downspout extender, adding to the overall disappointment of this product. In conclusion, the Frost King DE300 Standard Plastic Drain Away Downspout Extender may be an affordable option, but its poor water management, environmental concerns, durability issues, and installation difficulties make it hard to recommend. Instead, consider investing in a higher-quality downspout extender that will effectively direct water away from your home and help maintain a healthy environment for both your home and local wildlife. Don't let the downspout disappointment of the Frost King DE300 drain away your peace of mind.
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2 months ago
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