Amerimax StealthFlow 4631 Adjustable Elbow – Black, 15-inch Low-Profile Downspout Extension

Overview

The Amerimax StealthFlow 4631 Adjustable Elbow is a 15-inch, black PVC fitting designed to work with Stealth Flow low-profile downspout extensions. It provides a configurable path for rainwater, helping to direct flow away from your foundation and landscape features. By sliding the joint, you can set the elbow to a 45-degree or 90-degree angle to match your run, offering flexible routing around corners, beds, and edging. The snap‑together design keeps installation straightforward and tool-free, while the compact, low-profile form stays discreet in conventional garden settings.

Key benefits

• Angle from 45° to 90° by sliding the unit, enabling precise water routing.
• Low-profile black PVC blends with mulch and soil for a discreet look.
• Snap‑together construction installs without tools or digging.
• Durable material designed for outdoor use across seasons.
• Designed to pair with Stealth Flow extensions (models 4601/4602 and 4621/4622) for flexible runs.

Practical uses

• Direct rainwater around landscaping features or around hard corners of a home.
• Hide the elbow under mulch, straw, or other landscape cover for a seamless landscape appearance.
• Integrate before or after the extension, or between two extensions, to fine-tune drainage path.
• Combine with existing Stealth Flow components to customize your drainage layout.

Installation and compatibility

The elbow is designed for quick, tool-free assembly. To set the angle, slide the joint to the desired position, then connect to compatible extension pieces. It can be installed before or after an extension or placed between two extensions to suit the run.

Materials and durability

Made from PVC in classic black, the elbow resists weathering and remains outdoors-ready through seasonal changes. The finish helps minimize visibility while standing up to typical lawn and garden conditions.

Note

Performance depends on proper installation and drainage conditions in your area. This product is intended to support drainage improvements within typical residential setups.