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48

2 stage vacuum pump

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Prices mostly outside the sweet spot ($69.56–$360.24) — this niche doesn't clear our bar today.

Market size 25Growth 82Conversion 24Competition 69Returns 35Price range 10Avg price 56Brand share 26Review moat 83Quality gap 53

Review moat

Great330.24

avg incumbent reviews — the moat a new listing must climb

Growth

Great+77.3%

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

Competition

Good43%

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

Avg price

Good$158.41

avg listing price — sweet spot $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Returns

Okay4.8%

return rate — above 6% kills the launch gate

Brand share

Okay89%

top-5 brand share — brands hold most of the demand

Market size

Bad$99K

$99K/yr · 33K searches

Conversion

Bad1.9%

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

Price range

Bad$69.56–$360.24

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

Competition

The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 flat

Sellers

48

Top-5 brand share

89%

Open market

7%

  • VIVOHOME55%
  • Orion Motor Tech21%
  • Robinair5%
  • VTG VOGTEN5%
  • VEVOR4%
  • SPECSTAR4%
  • Open — no brand owns it (7 brands, 7%)

Product shelf

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

0%4%$4K8%$8K12%$12K16%$16K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 38 tracked products in this niche — three views at once, no toggling.

Demand

Weekly Amazon search volume, last 10 weeks — +77.3% search growth over the last 90 days.
1K600Spike '26May '26May '26May '26May '26May '26Jun '26Jun '26Jun '26Jun '26Jul '26

Reviews

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

What buyers love

Quality-Overall20%

“they are well made”

Value For Money19%

“Good Value”

Efficiency9%

“Vacuum pump works great”

Advertised Vs Actual Product9%

“As advertised”

Ease Of Use5%

“Easy to operate”

Noise Level4%

“Quiet operation”

Functionality-Overall3%

“Flawless operation to evacuate my AC system”

Instructions/User Manual/Troubleshooting2%

“Directions were clear and understandable”

Pressure2%

“The kit is safely compatible with higher pressure AC systems. e. g., R410A”

Assembly/Installation2%

“Great Setup”

What buyers complain about

Leak-Proof18%

“Oil spill”

Quality-Overall13%

“Very poor quality for the gauges and can taps”

Durability7%

“The pump only worked one time”

Measurement/Reading Accuracy7%

“The gauges are too busy”

Value For Money5%

“somewhat expensive set”

Functionality-Overall3%

“Doesnt work”

Compatibility-Overall3%

“Not all fittings are compatible”

Size-Overall3%

“Does not fit current style R134A freon cans”

Instructions/User Manual/Troubleshooting3%

“Definitely have to look on YouTube to get videos on use though directions or not very good”

Pressure2%

“Gauges work great pump not so good”

Top return reasons

Functionality-Overall17%
Leak-Proof12%
Compatibility-Overall8%
Defective Material/Parts8%
Size-Overall7%
Advertised Vs Actual Product6%
Measurement/Reading Accuracy4%
Value For Money4%
Suction4%
Pressure3%