Feilaydun Flexible Downspout Extensions 2 Pack
- Material Type: Polyethylene (PE), Acrylonitrile Butadiene Styrene (ABS)
- Color: 2 Pack White
- Unit Count: 2
- Item Dimensions L X W: 127 × 66 inches
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A practical, no-tools fix for water pooling at the foundation, with enough reach that two boxes can span a genuinely long run.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0DPMFSC22Category: Gutters
Overview
This is a two pack of flexible, extendable downspout extensions from Feilaydun, each stretching from 20 to 66 inches and reaching up to 127 inches when two are joined with the included connector. It suits homeowners who need to route roof runoff further from the foundation without digging a trench.
The accordion-style PE pipe bends and coils to route around flower beds, patios, or uneven grade, and can be buried if you want it out of sight. The ABS adapter end is built to take the twisting and clamping of installation, since that connection point carries the most stress in daily use.
- 20 to 66 inch extension range per unit
- Up to 127 inches combined with the connector
- ABS adapter plus PE corrugated pipe
- Fits 2x3, 3x3 and 3x4 inch downspouts
Who it's for
Suits anyone dealing with foundation pooling or soil erosion at the base of a downspout who wants a tool-free fix. Not the choice for a permanent, rigid extension meant to stay perfectly straight, since the corrugated pipe is designed to flex.
Pros and cons
- Extends nearly 5.5 ft, or over 10 ft with two connected
- No cutting or trimming needed to install
- ABS adapter fits three common downspout sizes
- Corrugated pipe can be buried for a hidden run
- Flexible pipe can sag or hold water if not sloped correctly
- Extra screws needed for a truly wind-secure fit
Performance notes
The pipe extends by pulling it open like an accordion and rotates onto the ABS adapter, which fits standard 2x3, 3x3 and 3x4 inch downspout openings. Screw holes on the adapter let you anchor it to the downspout so wind and rain flow don't work it loose, and the corrugated body can be bent to route around obstacles or partially buried.
Specifications
| Brand | Feilaydun |
|---|---|
| Dimensions & fit | |
| Item Dimensions L X W | 127 × 66 inches |
| Item Length | 10.6 feet |
| Outside Diameter | 3 inches |
| Construction & materials | |
| Material Type | Polyethylene (PE), Acrylonitrile Butadiene Styrene (ABS) |
| Color | 2 Pack White |
| Included components | |
| Unit Count | 2 |
Frequently asked questions
What downspout sizes does the Feilaydun extension fit?
It's built for the three most common residential sizes: 2x3, 3x3 and 3x4 inch downspouts.
How long can two Feilaydun extensions reach when joined?
Connected with the included mini connector, two units can span up to 127 inches, versus 66 inches maxed out alone.
Does the Feilaydun downspout extension need to be buried?
No, it can be left above ground and bent into shape, though the pipe is also rated to be buried if you prefer it hidden.