---
title: "6 Inch Stove Pipe Damper — $39K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/6-inch-stove-pipe-damper"
last_updated: "2026-08-08T11:48:44.765Z"
locale: en
meta:
  description: "Niche score 36/100 · $39K/yr market · 20K searches/yr · $19.42 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 36/100 · $39K/yr market · 20K searches/yr · $19.42 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "6 Inch Stove Pipe Damper — $39K/yr Amazon US Niche (2026) - Flapen"
---

# **6 inch stove pipe damper**

**Skip it**

A small market ($39K/yr) — this niche doesn't clear our bar today.

Market size 10Growth 18Conversion 86Competition 19Returns 22Price range 91Avg price 86Brand share 24Review moat 74Quality gap 35

**Price range**

**Great****$13.72–$37.58**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Conversion**

**Great****9.8%**

search→purchase rate — share of searches ending in a sale

**Avg price**

**Great****$19.42**

avg listing price — sweet spot $15–$100

**Review moat**

**Good****549.36**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Bad****91%**

top-5 brand share — brand-locked demand

**Returns**

**Bad****5.8%**

return rate — above 5% kills the launch gate

**Competition**

**Bad****78%**

top-5 click share — a locked-up shelf

**Growth**

**Bad****-13.8%**

90-day search growth — must beat 0% to launch

**Market size**

**Bad****$39K**

$39K/yr · 20K searches

**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")

According to Flapen's Amazon United States niche tracking, 6 inch stove pipe damper is a $39K/yr Amazon United States market (20K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 36/100.

Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)

## **6 inch stove pipe damper market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**2K–3K**</dd><dd>avg 100–250/product</dd>

<dt>**Revenue / yr**</dt><dd>**$39K–$49K**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**9.8%**</dd>

<dt>**Avg BSR**</dt><dd>**#191**</dd>

<dt>**Page quality**</dt><dd>**0%**</dd>

<dt>**Prime**</dt><dd>**100%**</dd>

<dt>**Sponsored**</dt><dd>**82%**</dd>

<dt>**Out of stock**</dt><dd>**4.3%**</dd>

<dt>**Avg brand age**</dt><dd>**37 months**</dd>

<dt>**Avg seller age**</dt><dd>**166 days**</dd>

</dl>

## **Competition & brand share**

The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**8 **▼falling

**Sellers**

**10**

**Top-5 brand share**

**91%**

Top 20: 100%

**Top-5 click share**

**78%**

Top 20: 100%

**Open market**

**5%**

- Kikerike45% - AC Infinity20% - Therwen11% - Hon&Guan9% - F and L Aluminum Parts6% - FRESH SPEED4% - Open — no brand owns it (2 brands, 5%)

## **Demand**

Weekly Amazon search volume, last 28 weeks — -13.8% search growth over the last 90 days.

500300Spike '26Prime Day '26Jan '26Feb '26Mar '26Apr '26May '26May '26Jun '26

[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/6-inch-stove-pipe-damper/trend)

## **Top 6 inch stove pipe damper search terms**

- **6 duct damper**3K/yr+14.3%4.9% conv. - **6 inch backdraft damper**4K/yr-23.6%9.9% conv. - **6 inch damper**4K/yr-16.7%5.3% conv. - **6 backdraft damper**3K/yr-13.5%14.3% conv. - **6 inch duct damper**3K/yr-16.7%4.9% conv. - **6 damper**3K/yr-23.3%6.2% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/6-inch-stove-pipe-damper/search-terms)

## **Top 6 inch stove pipe damper products on Amazon**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%15%$6K30%$12K45%$18K60%$23K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector](https://m.media-amazon.com/images/I/317rneZH4zL.jpg)**6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector**Kikerike**$15.04**4.5★1,281 rev](https://www.amazon.com/dp/B099KGLXQC) [2![AC Infinity 6 Backdraft Damper One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6 Ducting in Range Hoods and Bathrooms Fans](https://m.media-amazon.com/images/I/3159mTfKr1L.jpg)**AC Infinity 6 Backdraft Damper One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6 Ducting in Range Hoods and Bathrooms Fans**AC Infinity**$19.65**4.6★2,036 rev](https://www.amazon.com/dp/B0842XLY96) [3![F&L Industries 6 Galvanized Duct Volume Damper w/Quad Lever | FLD06 for HVAC Venting Airflow Control Heating Cooling & Exhaust Duct Applications](https://m.media-amazon.com/images/I/31XWmlGYdZL.jpg)**F&L Industries 6 Galvanized Duct Volume Damper w/Quad Lever | FLD06 for HVAC Venting Airflow Control Heating Cooling & Exhaust Duct Applications**F and L Aluminum Parts**$13.84**4.6★45 rev](https://www.amazon.com/dp/B0DGFNGJFQ) [4![Therwen Backdraft Damper Duct Manual Volume Damper with Sleeve Galvanized Sheet Adjustment Airflow Ducting Branch HVAC Air Balancing for Range Hoods Fans(1 Pc 6 Inch)](https://m.media-amazon.com/images/I/41d1NuUunPL.jpg)**Therwen Backdraft Damper Duct Manual Volume Damper with Sleeve Galvanized Sheet Adjustment Airflow Ducting Branch HVAC Air Balancing for Range Hoods Fans(1 Pc 6 Inch)**Therwen**$24.42**4.6★173 rev](https://www.amazon.com/dp/B0C36J5RCT) [5![Therwen Backdraft Damper Duct Manual Volume Damper with Sleeve Galvanized Sheet Adjustment Airflow Ducting Branch HVAC Air Balancing for Range Hoods Fans(2 Pcs 6 Inch)](https://m.media-amazon.com/images/I/41w84ASLb+L.jpg)**Therwen Backdraft Damper Duct Manual Volume Damper with Sleeve Galvanized Sheet Adjustment Airflow Ducting Branch HVAC Air Balancing for Range Hoods Fans(2 Pcs 6 Inch)**Therwen**$37.58**4.6★173 rev](https://www.amazon.com/dp/B0CDP9KGPF)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![[Upgraded] Hon&Guan 6 Inch Backdraft Damper Draft Blocker One-Way Airflow Duct Damper 6 Inch Ducting Insert Backflow Preventer Inline Fan Vent Deflector-Black](https://m.media-amazon.com/images/I/41pxD9+TRhL.jpg)**\[Upgraded\] Hon&Guan 6 Inch Backdraft Damper Draft Blocker One-Way Airflow Duct Damper 6 Inch Ducting Insert Backflow Preventer Inline Fan Vent Deflector-Black**Hon&Guan**$14.41**72 rev1y ago](https://www.amazon.com/dp/B0F6BTB78X) [![AMREMSU 6 Inch HVAC Duct Backdraft Damper - Stainless Steel Manual Adjustable Air Control Valve with Sealing Rubber Gasket for Airflow Ducting Branch Vent Systems](https://m.media-amazon.com/images/I/51ZVkNNvJML.jpg)**AMREMSU 6 Inch HVAC Duct Backdraft Damper - Stainless Steel Manual Adjustable Air Control Valve with Sealing Rubber Gasket for Airflow Ducting Branch Vent Systems**Amremsu**$27.42**36 rev1y ago](https://www.amazon.com/dp/B0DLGGWDWQ) [![[Upgraded] Hon&Guan 6 Inch Backdraft Damper One-Way Airflow Duct Damper 6 Inch Ducting Insert Backflow Preventer Duct Draft Blocker](https://m.media-amazon.com/images/I/41U4Wu58kfL.jpg)**\[Upgraded\] Hon&Guan 6 Inch Backdraft Damper One-Way Airflow Duct Damper 6 Inch Ducting Insert Backflow Preventer Duct Draft Blocker**Hon&Guan**$14.44**238 rev1y ago](https://www.amazon.com/dp/B0DD662489) [![F&L Industries 6 Galvanized Duct Volume Damper w/Quad Lever | FLD06 for HVAC Venting Airflow Control Heating Cooling & Exhaust Duct Applications](https://m.media-amazon.com/images/I/31XWmlGYdZL.jpg)**F&L Industries 6 Galvanized Duct Volume Damper w/Quad Lever | FLD06 for HVAC Venting Airflow Control Heating Cooling & Exhaust Duct Applications**F and L Aluminum Parts**$13.84**45 rev1y ago](https://www.amazon.com/dp/B0DGFNGJFQ) [![6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - Black](https://m.media-amazon.com/images/I/41lebo7FhUL.jpg)**6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector - Black**Kikerike**$14.63**1,281 rev2y ago](https://www.amazon.com/dp/B0CRQZ3FVQ)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![F&L Industries 6 Galvanized Duct Volume Damper w/Quad Lever | FLD06 for HVAC Venting Airflow Control Heating Cooling & Exhaust Duct Applications](https://m.media-amazon.com/images/I/31XWmlGYdZL.jpg)**F&L Industries 6 Galvanized Duct Volume Damper w/Quad Lever | FLD06 for HVAC Venting Airflow Control Heating Cooling & Exhaust Duct Applications**F and L Aluminum Parts**$13.84**4.6★**▲ 192%**](https://www.amazon.com/dp/B0DGFNGJFQ) [![Therwen Backdraft Damper Duct Manual Volume Damper with Sleeve Galvanized Sheet Adjustment Airflow Ducting Branch HVAC Air Balancing for Range Hoods Fans(1 Pc 6 Inch)](https://m.media-amazon.com/images/I/41d1NuUunPL.jpg)**Therwen Backdraft Damper Duct Manual Volume Damper with Sleeve Galvanized Sheet Adjustment Airflow Ducting Branch HVAC Air Balancing for Range Hoods Fans(1 Pc 6 Inch)**Therwen**$24.42**4.6★**▲ 31%**](https://www.amazon.com/dp/B0C36J5RCT) [![6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector](https://m.media-amazon.com/images/I/317rneZH4zL.jpg)**6 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector**Kikerike**$15.04**4.5★**— 6%**](https://www.amazon.com/dp/B099KGLXQC) [![Therwen Backdraft Damper Duct Manual Volume Damper with Sleeve Galvanized Sheet Adjustment Airflow Ducting Branch HVAC Air Balancing for Range Hoods Fans(2 Pcs 6 Inch)](https://m.media-amazon.com/images/I/41w84ASLb+L.jpg)**Therwen Backdraft Damper Duct Manual Volume Damper with Sleeve Galvanized Sheet Adjustment Airflow Ducting Branch HVAC Air Balancing for Range Hoods Fans(2 Pcs 6 Inch)**Therwen**$37.58**4.6★**— 5%**](https://www.amazon.com/dp/B0CDP9KGPF) [![[Upgraded] Hon&Guan 6 Inch Backdraft Damper One-Way Airflow Duct Damper 6 Inch Ducting Insert Backflow Preventer Duct Draft Blocker](https://m.media-amazon.com/images/I/41U4Wu58kfL.jpg)**\[Upgraded\] Hon&Guan 6 Inch Backdraft Damper One-Way Airflow Duct Damper 6 Inch Ducting Insert Backflow Preventer Duct Draft Blocker**Hon&Guan**$14.44**4.4★**— 5%**](https://www.amazon.com/dp/B0DD662489)

**~~View all trending →~~**

## **What buyers say about 6 inch stove pipe damper**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**27%

*“It seems to be well made”*

**Value For Money**13%

*“Worth it”*

**Size-Overall**13%

*“Fits and work well”*

**Advertised Vs Actual Product**11%

*“Does its job”*

**Efficiency**10%

*“Function”*

**Durability**6%

*“Durable”*

**Assembly/Installation**4%

*“Easy install”*

**Material Quality**3%

*“Really nice materials and fit”*

**Cooling**3%

*“No more freezing cold drafts”*

**Design-Overall**2%

*“Well built”*

### **What buyers complain about **

**Strength**25%

*“this one is just too weak”*

**Ease Of Use**17%

*“Not too easy to open that it's flopping around”*

### **Top return reasons **

**Size-Overall**57%

**Functionality-Overall**8%

**Advertised Vs Actual Product**6%

**Compatibility-Overall**5%

**Quality-Overall**4%

**Value For Money**3%

**Defective Material/Parts**3%

**Mechanism Issues**3%

**Assembly/Installation**2%

**Leak-Proof**1%

## **Common questions**

<dl>

<dt>**Is 6 inch stove pipe damper profitable to sell on Amazon United States?**</dt><dd>The niche generates $39K/yr across 11 tracked products. 90-day search growth is -13.8%. Flapen's verdict: Skip it (36/100).</dd>

<dt>**How competitive is the 6 inch stove pipe damper niche?**</dt><dd>8 brands and 10 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 91% of demand.</dd>

<dt>**What do buyers complain about in 6 inch stove pipe damper?**</dt><dd>Top complaints mined from reviews: Strength, Ease Of Use. The return rate is 5.8% — above our launch gate.</dd>

<dt>**What does it cost to enter the 6 inch stove pipe damper niche?**</dt><dd>Listings span $13.72–$37.58; the average listing price is $19.42 (sweet spot $15–$100). The average incumbent carries 549 reviews — the moat a new listing must climb.</dd>

</dl>

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