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Mastic B Elbow 3 in. x 4 in. Aluminum Downspout Elbow, Scottish Thistle
Regular price $4.25Orders start at $399 — combine any items to reach the minimum. Learn more
Mastic B Elbow 3 in. x 4 in. Aluminum Downspout Elbow, Scottish Thistle
This Mastic B elbow turns 3 in. x 4 in. aluminum downspouts sideways along a wall to route around obstructions or kick out at the base. It is made of rust-free aluminum in Scottish Thistle and sold per piece. Pair it with matching A elbows and 3 in. x 4 in. downspout.
Key Features:
- 3 x 4 Fit: Sized for 3 in. x 4 in. rectangular downspouts.
- B-Style Bend: B elbows change direction side-to-side along the wall.
- Rust-Free Aluminum: Durable aluminum construction won't rust and is easy to maintain.
- Two-Coat Finish: Rust-inhibiting primer and low-mar topcoat on both sides of the coil.
- Per Piece: Sold individually so you can order what each run requires.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Mastic |
| Sell unit | 1 piece |
| Product line | Mastic gutter fittings |
| Available colors | Scottish Thistle |
| Available sizes | 3 in. x 4 in. |
| Material | Aluminum |
| Dimensions | 3 in. x 4 in. |
| Finish / texture | Two-coat finish: rust-inhibiting primer and low-mar topcoat |
| Intended use | Downspout direction change for 3 in. x 4 in. systems |
Fit and Compatibility:
Fits 3 in. x 4 in. Mastic K-style aluminum downspouts; use with matching A elbows, downspout bands and extensions sold separately.
Frequently Asked Questions (FAQ):
Q: What downspout size does it fit?
A: It is designed for 3 in. x 4 in. rectangular aluminum downspouts.
Q: When do I use a B elbow instead of an A elbow?
A: A B elbow turns the downspout sideways along the wall; an A elbow turns it toward or away from the wall.
Q: How is it sold?
A: It is sold per piece.
Q: What color is it?
A: Scottish Thistle, from the Mastic gutter color palette.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Typical downspout bottoms use an A elbow off the outlet followed by a B elbow to angle discharge away from the foundation. Keep elbows matched to the 3 in. x 4 in. size to avoid step-downs that slow water flow. Match the Scottish Thistle finish to the rest of the gutter system.
Fasten elbows and downspout sections securely with appropriate bands so wind cannot dislodge the run.
Order the Mastic 3 in. x 4 in. B elbow in Scottish Thistle to complete your downspout run.
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