Is microwave vent kit profitable to sell on Amazon United States?

The niche generates $75K/yr across 41 tracked products. 1 of 14 products launched in the last 360 days are still selling. 90-day search growth is -5.3%. Flapen's verdict: Skip it (48/100).

How competitive is the microwave vent kit niche?

28 brands and 57 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 54% of demand.

What do buyers complain about in microwave vent kit?

Top complaints mined from reviews: Quality-Overall, Size-Overall, Assembly/Installation. The return rate is 2.8%.

What does it cost to enter the microwave vent kit niche?

Listings span $9.78–$277.91; the average listing price is $38.95 (sweet spot $15–$100). The average incumbent carries 867 reviews — the moat a new listing must climb.

microwave vent kit

Skip it

A small market ($75K/yr) — this niche doesn't clear our bar today.

Avg price

Incredible$38.95

avg listing price — sweet spot $15–$100

Brand share

Great54%

top-5 brand share — no brand owns this niche

Competition

Good41%

top-5 click share — leaders hold, buyers still browse

Review moat

Good866.76

avg incumbent reviews — the moat a new listing must climb

Returns

Good2.8%

return rate — above 5% kills the launch gate

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Price range

Okay$9.78–$277.91

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

Conversion

Okay2.1%

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

Growth

Bad-5.3%

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

Market size

Bad$75K

$75K/yr · 93K searches

Signals No Dominant Brand Low Review Barrier

According to Flapen's Amazon United States niche tracking, microwave vent kit is a $75K/yr Amazon United States market (93K searches/yr). The top 5 brands hold 54% of demand. Verdict: Skip it — 48/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

microwave vent kit market data

Units sold / yr: 2K–3K; avg 0–100/product
Revenue / yr: $78K–$97K; units × avg price
Conversion rate: 2.1%
Avg BSR: #679
Page quality: 0%
Prime: 100%
Sponsored: 90%
Out of stock: 8.1%
Avg brand age: 39 months
Avg seller age: 189 days

Competition & brand share

The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.

Brands

28 flat

Sellers

Top-5 brand share

54%

Top 20: 93%

Top-5 click share

41%

Top 20: 80%

Open market

41%

JIANBENKJ15%
SunDiss14%
GlowGeek14%
Rocaris6%
folosem5%
Pasimy5%

Demand

Weekly Amazon search volume, last 38 weeks — -5.3% search growth over the last 90 days.

Open Trend

Top microwave vent kit search terms

microwave vent kit25K/yr -7.8%2.1% conv.
microwave vent13K/yr -7.5%2.3% conv.
microwave exhaust vent kit11K/yr -5.9%2.1% conv.
microwave duct vent kit6K/yr +1.9%1.7% conv.
range hood vent duct kit7K/yr +4.9%0.1% conv.
microwave vent adapter5K/yr +0.0%3.3% conv.
rectangular to round duct6K/yr -1.9%0.4% conv.
3 1/4 x 10 rectangular duct3K/yr +8.4%1.7% conv.
microwave vent duct4K/yr -28.2%3.1% conv.
samsung microwave vent kit3K/yr -5.1%1.8% conv.

All search terms

Top microwave vent kit 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.

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

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

4 Dia x 3-1/4 x 10 L microwave vent kit Rectangular to Round Duct Galvanized Steel Transition for Connecting Duct Fittings-Includes gloves and tape

SunDiss$29.804.7★44 rev

4 Dia. Round to Rectangular Duct Transition Adapter 3-1/4 x 10 Galvanized Steel for Microwave Vent Kit Ducting Hose Range Hood HVAC Exhaust Duct Pipe Fittings with Foil Tape & Gloves

GlowGeek$30.214.4★74 rev

Wall Vent Cap for Microwave Vent Range Hood Oven Stove Kitchen Exhaust Fan

JIANBENKJ$36.804.7★148 rev

Microwave Vent Range Hood Vent Wall Vent Cap for 3-1/4x10Rectangular Duct

JIANBENKJ$37.804.7★148 rev

3-1/4 x 10 to 4 Rectangular to Round Duct Transition Microwave Vent Kit

Pasimy$24.434.5★78 rev

Newest

by launch date

Hon&Guan Microwave Vent Kit 4 Dia x 3-1/4 x 10 Rectangular to Round Duct Transition Galvanized Steel Adapter for Range Hood Exhaust Pipe Microwave Ducting HVAC with Foil Tape & Gloves

Hon&Guan$32.038 rev

4mo ago

W10843943 Microwave Vent Kit Compatible with Whirlpool Kenmore Kitchenaid Maytag Replacement W10748710 AP5988876 8205811 8205558 PS11728088Sturdy and Heat Resistant

Hyparade$19.582 rev

6mo ago

Wall Vent Cap for Microwave Vent 6 Round Duct Vent Cover for Kitchen Range Hood Microwave Exterior Wall Vent Cover Galvanized Steel Black

Pirjeco$45.4825 rev

7mo ago

Otoolling Microwave Exhaust Vent Kit Microwaves Vent Damper Compatible with Samsung Ge Hotpoint Microwave

Otoolling$19.296 rev

7mo ago

CG WB06X10436 Microwaves Vent Damper Fits for GE Microwave Exhaust Vent Kit Replaces Microwave Vent Kit Vent Damper 942574 AH651224 EA651224 PS651224 WB06X0388 Comes with 2 Screws)

CG$28.342 rev

8mo ago

What buyers say about microwave vent kit

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

What buyers love

Size-Overall28%

“Exact fit”

Quality-Overall21%

“Excellent product”

Value For Money7%

“Good deal”

Advertised Vs Actual Product7%

“As described”

Assembly/Installation3%

“I also appreciated that the kit includes foil tape and gloves, which saved me from having to purchase additional items separately and made the installation process more convenient”

Strength3%

“Sturdy build”

Design-Overall3%

“Well built,”

Ease Of Use3%

“So easy”

Filtration2%

“These filters are exactly what I expected, and arrived quickly”

Material Quality2%

“Overall, the materials seem durable, the included accessories are a nice bonus, and the kit offers a solid value”

What buyers complain about

Quality-Overall15%

“This quality is not available at a local store”

Size-Overall10%

“Too small”

Assembly/Installation7%

“Not a very well put together product”

Strength6%

“They keep falling down”

Durability4%

“then the handle broke off”

Functionality-Overall3%

“Did not work”

Touch/Button Controls3%

“A GE microwave with a problem touch pad”

Scratch Resistance3%

“Microwave was dented”

Maintenance And Repair3%

“which had to repaired”

Instructions/User Manual/Troubleshooting2%

“The instructions are confusing”

Top return reasons

Size-Overall73%

Compatibility-Overall5%

Defective Material/Parts4%

Filtration3%

Functionality-Overall2%

Advertised Vs Actual Product2%

Value For Money2%

Assembly/Installation1%

Quality-Overall1%

Mounting1%

Common questions

Is microwave vent kit profitable to sell on Amazon United States?: The niche generates $75K/yr across 41 tracked products. 1 of 14 products launched in the last 360 days are still selling. 90-day search growth is -5.3%. Flapen's verdict: Skip it (48/100).
How competitive is the microwave vent kit niche?: 28 brands and 57 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 54% of demand.
What do buyers complain about in microwave vent kit?: Top complaints mined from reviews: Quality-Overall, Size-Overall, Assembly/Installation. The return rate is 2.8%.
What does it cost to enter the microwave vent kit niche?: Listings span $9.78–$277.91; the average listing price is $38.95 (sweet spot $15–$100). The average incumbent carries 867 reviews — the moat a new listing must climb.