Flue dampers
A cast iron damper for 6 inch single-wall pipe, that warns you never to close it fully.
A cast iron damper for 6 inch single-wall pipe, that warns you never to close it fully.
Best for: A 6 inch single-wall connector.
showingo gives cast iron, a spring lock and a clamp-on fit.
A damper in the connector needs a stove whose manual allows it. Never close one fully on a live fire: CO can back up into the room. Keep a CO alarm in the room.
Prices quoted in this text were read on November 1, 2026. The live price is at the top of the page.
The listing is for single wall black pipe.
No. The listing warns against that.
This model is listed on Amazon.com, at ≈ $16 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on November 14, 2026.
A 6 inch single-wall connector.
Same shelf, nearest prices. We list only specifications every stove states — gaps compare nothing.
| Model | Price | Material |
|---|---|---|
| showingo BM0051-A Cast Iron Damper, 6 in | $16 | Cast iron, steel handle |
| Imperial BM0052-A Cast Iron Damper, 7 in | $12 | Cast iron |
| XiHu BM0053-A Cast Iron Damper, 8 in | $23 | Cast iron |
| Flueblocker Wool Flue Plug, 5 to 6 in Round | $35 | 100% Herdwick wool |
At $16, it sits -30 % against the $23 median of the 5 models in this category published here.
Specifications: the manufacturer sheet for wood heating equipment and the matching Amazon product page. Prices, ratings and availability: read on Amazon.com from a New York address. Every figure on this page names its source.
An 8 inch cast iron damper, and only 2 ratings.
Best for: An 8 inch connector.
A wool plug that stops cold drafts through an unused flue; it must come out before any fire.
Best for: An unused fireplace or stove flue.
A short pipe section with a built-in damper and published end sizes, with 5 ratings.
Best for: A connector with no drilling.
A double-wall elbow for a DVL connector run, with wall thicknesses and clearances stated.
Best for: A DVL connector that has to turn.
The pellet elbow: Ø 80 mm (3.15 in) in 1.2 mm steel, with a rubber seal already fitted and a temperature class stated to 200 °C (392 °F).
Best for: A pellet appliance whose flue turns, where the joint has to be sealed rather than merely pushed together
The cheap, common 6 inch adjustable elbow, with 767 ratings at 4.5 out of 5 and a listing that says little else.
Best for: A standard 6 inch single-wall connector.