Amerimax StealthFlow 4631 Adjustable Downspout Elbow
- Size: 1 count
- Item Weight: 0.66 pounds
- Color: Black
- Material: PVC
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A tool-free angle fitting for an existing Amerimax Stealth Flow extension, not a universal downspout elbow.
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ASIN: B07CMLHXCJModel: StealthFlow 4631Category: Gutters
Overview
The StealthFlow 4631 is an adjustable PVC elbow that slides from 45 to 90 degrees, made to connect into Amerimax's Stealth Flow low profile downspout extension system rather than stand alone.
It's a fitting, not a full extension: the value is in routing water around a corner or garden bed while staying low enough to disappear under mulch or straw. Because it's built specifically for Amerimax's 4601/4602 and 4621/4622 hardware, it's really an add-on purchase for someone who already owns that system.
- Adjusts from 45 to 90 degrees
- Snap-together, no tools required
- Low profile, hides under mulch
- Fits Amerimax 4601/4602 and 4621/4622 kits
Who it's for
Fits an owner of the Amerimax Stealth Flow low profile extension who needs to change the water's direction around an obstacle. It isn't a match for other brands of low-profile downspout extension.
Pros and cons
- Snap-together install, no tools needed
- Adjustable angle instead of one fixed bend
- Low enough to hide under mulch or straw
- Built specifically for the Amerimax Stealth Flow line, not universal
- PVC construction, no stated cold-weather flexibility
Performance notes
The elbow slides along its body to set any angle between 45 and 90 degrees rather than locking to one fixed bend, and it snaps together without tools. It sits low enough to bury under mulch or landscape cover, and it can go before the extension, after it, or spliced between two extension pieces.
Specifications
| Brand | Amerimax |
|---|---|
| Model | StealthFlow 4631 |
| Dimensions & fit | |
| Size | 1 count |
| Item Weight | 0.66 pounds |
| Product Dimensions | 15 × 8 × 2 inches |
| Construction & materials | |
| Color | Black |
| Material | PVC |
| Included components | |
| Included Components | Amerimax - 4631 #2 |
| Item Package Quantity | 1 |
| Other details | |
| Item Model Number | Amerimax - 4631 #2 |
| Part Number | 4631 |
Frequently asked questions
What does the StealthFlow 4631 elbow fit?
Amerimax's Stealth Flow low profile downspout extension kit (models 4601/4602) and low profile extension (models 4621/4622).
Do I need tools to install it?
No, it uses a snap-together design.
Can it go between two extension pieces?
Yes, it can be installed before the extension, after it, or between two extension pieces.