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46

30 oz tumbler lid

Skip it

Prices mostly outside the sweet spot ($4.80–$14.08) — this niche doesn't clear our bar today.

Market size 13Growth 24Conversion 72Competition 65Returns 27Price range 0Avg price 24Brand share 88Review moat 49Quality gap 80

Brand share

Great47%

top-5 brand share — no brand owns this niche

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Conversion

Good6.6%

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

Competition

Good46%

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

Review moat

Okay1,552.62

avg incumbent reviews — the moat a new listing must climb

Returns

Okay4.9%

return rate — above 5% kills the launch gate

Growth

Bad-2.0%

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

Avg price

Bad$8.66

avg listing price — sweet spot $15–$100

Market size

Bad$53K

$53K/yr · 93K searches

Price range

Bad$4.80–$14.08

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

According to Flapen's Amazon United States niche tracking, 30 oz tumbler lid is a $53K/yr Amazon United States market (93K searches/yr). The top 5 brands hold 47% of demand. Verdict: Skip it — 46/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

30 oz tumbler lid market data

Units sold / yr
6K–8K
avg 100–250/product
Revenue / yr
$52K–$69K
units × avg price
Conversion rate
6.6%
Avg BSR
#957
Page quality
0%
Prime
100%
Sponsored
83%
Out of stock
4.0%
Avg brand age
33 months
Avg seller age
136 days

Competition & brand share

The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.

Brands

26 falling

Sellers

28

Top-5 brand share

47%

Top 20: 93%

Top-5 click share

46%

Top 20: 89%

Open market

48%

  • SOONSURE22%
  • C&Berg7%
  • ZUIHUI6%
  • CCGGAD6%
  • DUOYHIEL6%
  • CYHTSHFZ5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -2.0% search growth over the last 90 days.
4K3KSpike '24Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Top 30 oz tumbler lid search terms

  • 30 oz tumbler lid37K/yr
  • 30oz tumbler lid15K/yr
  • 30 oz tumbler lids replacement10K/yr
  • 30oz tumbler lid replacement8K/yr
  • 32 oz tumbler lid8K/yr
  • tumbler lids 30 oz replacement lid7K/yr
  • 32oz tumbler lid4K/yr
  • replacement lid for 30 oz tumbler3K/yr
All search terms

Top 30 oz tumbler lid 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%10%$5K20%$11K30%$16K40%$21K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

What buyers say about 30 oz tumbler lid

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

What buyers love

Size-Overall51%

“Accurate Size”

Leak-Proof9%

“Do not leak”

Quality-Overall8%

“Build Quality: The plastic feels substantial and high-quality”

Value For Money6%

“GREAT value”

Advertised Vs Actual Product4%

“As Expected”

Ease Of Cleaning3%

“easy to remove for cleaning”

Efficiency2%

“Does fine”

Ease Of Use1%

“Ease of use”

Durability1%

“Theyre incredibly durable”

Design-Overall1%

“Good design”

What buyers complain about

Durability22%

“Didnt last”

Size-Overall17%

“Didn't fit”

Leak-Proof11%

“water leaks”

Quality-Overall10%

“Bad quality”

Strength3%

“isn't as strong”

Value For Money2%

“less thab half the price”

Ease Of Cleaning2%

“sorta hard to clean”

Compatibility-Overall2%

“Not Compatible with Stanley”

Advertised Vs Actual Product2%

“Not what it appears to be”

Ease Of Use2%

“a little difficult to take off”

Top return reasons

Size-Overall87%
Advertised Vs Actual Product4%
Leak-Proof4%
Compatibility-Overall3%
Functionality-Overall1%
Mechanism Issues1%
Color0%
Quality-Overall0%
Durability0%
Ease Of Use0%

Common questions

Is 30 oz tumbler lid profitable to sell on Amazon United States?
The niche generates $53K/yr across 29 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -2.0%. Flapen's verdict: Skip it (46/100).
How competitive is the 30 oz tumbler lid niche?
26 brands and 28 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 47% of demand.
What do buyers complain about in 30 oz tumbler lid?
Top complaints mined from reviews: Durability, Size-Overall, Leak-Proof. The return rate is 4.9%.
When does demand for 30 oz tumbler lid peak?
Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the 30 oz tumbler lid niche?
Listings span $4.80–$14.08; the average listing price is $8.66 (sweet spot $15–$100). The average incumbent carries 1,553 reviews — the moat a new listing must climb.