Is 33 inch undermount kitchen sink profitable to sell on Amazon United States?

The niche generates $190K/yr across 44 tracked products. 3 of 11 products launched in the last 360 days are still selling. 90-day search growth is +10.7%. Flapen's verdict: Skip it (47/100).

How competitive is the 33 inch undermount kitchen sink niche?

28 brands and 41 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 50% of demand.

What do buyers complain about in 33 inch undermount kitchen sink?

Top complaints mined from reviews: Rusts/Corrodes, Size-Overall, Drainage. The return rate is 7.9% — above our launch gate.

When does demand for 33 inch undermount kitchen sink peak?

Demand peaks in Aug; the busiest month runs 1.9× the quietest.

What does it cost to enter the 33 inch undermount kitchen sink niche?

Listings span $91.71–$502.67; the average listing price is $241.98 (sweet spot $15–$100). The average incumbent carries 665 reviews — the moat a new listing must climb.

33 inch undermount kitchen sink

Skip it

Prices mostly outside the sweet spot ($91.71–$502.67) — this niche doesn't clear our bar today.

Brand share

Great50%

top-5 brand share — no brand owns this niche

Competition

Great33%

top-5 click share — an open shelf

Review moat

Good664.95

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Okay$241.98

avg listing price — sweet spot $15–$100

Market size

Okay$190K

$190K/yr · 34K searches

Growth

Okay+10.7%

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

Conversion

Okay2.3%

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

Returns

Bad7.9%

return rate — above 5% kills the launch gate

Price range

Bad$91.71–$502.67

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

Signals High Returns High Price

According to Flapen's Amazon United States niche tracking, 33 inch undermount kitchen sink is a $190K/yr Amazon United States market (34K searches/yr). The top 5 brands hold 50% of demand. Demand peaks in Aug. Verdict: Skip it — 47/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

33 inch undermount kitchen sink market data

Units sold / yr: 500–750; avg 0–100/product
Revenue / yr: $121K–$181K; units × avg price
Conversion rate: 2.3%
Avg BSR: #196
Page quality: 0%
Prime: 95%
Sponsored: 98%
Out of stock: 8.1%
Avg brand age: 32 months
Avg seller age: 177 days

Competition & brand share

Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.

Brands

28 rising

Sellers

Top-5 brand share

50%

Top 20: 92%

Top-5 click share

33%

Top 20: 75%

Open market

47%

Kraus23%
Lordear8%
Sarlai8%
MAYESAR6%
Bokaiya4%
SANYCASA4%

Demand & seasonality

Weekly Amazon search volume, last 70 weeks — +10.7% search growth over the last 90 days.

Peak months: Aug · busiest ÷ quietest = 1.9×

Open Trend

Top 33 inch undermount kitchen sink search terms

undermount kitchen sink 33 inch6K/yr +33.1%0.8% conv.
33 inch undermount kitchen sink15K/yr -13.2%1.5% conv.
33 undermount kitchen sink9K/yr +11.3%2.0% conv.
kitchen sink undermount 33 inch4K/yr +44.7%0.7% conv.

All search terms

Top 33 inch undermount kitchen sink 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

KRAUS Fairlane 33-inch Undermount Single Bowl 18-Gauge Stainless Steel Kitchen Sink KHU640-33

Kraus$240.914.7★126 rev

Sarlai 33 Kitchen Sink Undermount 33 x 19 Inch Undermount Sink Workstation

Sarlai$253.344.5★739 rev

MAYESAR 33 Inch Kitchen Sinks Undermount - 33 x 19 Stainless Steel Undermount Workstation 16 Gauge Single Bowl Deep Under Counter Kitchen Sink Basin

MAYESAR$230.134.6★45 rev

Lordear 33 Undermount Kitchen Sink 33 x 19 Stainless Steel Sinks 16 Gauge Single Bowl Ledge Workstation Handmade Under Counter Kitchen Sink Basin with Built-In Accessories

Lordear$251.804.6★865 rev

KRAUS Dex 33-inch Undermount 16 Gauge Stainless Steel Single Bowl Kitchen Sink KA1US33B

Kraus$302.514.6★344 rev

Newest

by launch date

33 x 22 Drop In Kitchen Sink T304 18 Gauge Stainless Steel Dual Mount

Gracava$151.282 rev

2mo ago

33 Inch Undermount Kitchen Sink Stainless Steel Single Bowl Flush Rim 2.0cm Edge & 1.0mm Wall Brushed Bottom Grid and Drain Included

PeakPursuit$93.331 rev

3mo ago

3318 Inch Undermount Kitchen Sink Thick reinforced Stainless Steel Deep Single Bowl Workstation Sinks Integrated Ledge Design with Full Accessories

JHWSXWAWJ$176.403 rev

5mo ago

Shinmou 33 Inch Undermount Kitchen Sink 33x19 Inch Kitchen Sink

shinmou$158.6211 rev

6mo ago

Selosyem 33-Inch Undermount Stainless Steel Kitchen Sink - 33x19 Sink 16 Gauge 304 Stainless Steel Single Bowl Handmade Sink Basin With Accessories

Selosyem$256.0432 rev

7mo ago

What buyers say about 33 inch undermount kitchen sink

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

What buyers love

Quality-Overall30%

“BEAUTIFUL QUALITY”

Design-Overall12%

“Great look and function”

Value For Money7%

“Great product for the money”

Assembly/Installation6%

“Easy installation”

Ease Of Cleaning6%

“Easy to wipe clean”

Strength4%

“Heavy duty”

Add-Ons/Attachments4%

“Love that it comes with all the accessories”

Weight Heavy4%

“Heavy duty”

Size-Overall4%

“Fits perfectly on standard cabinet bases”

Durability3%

“durable”

What buyers complain about

Rusts/Corrodes18%

“After 6 months of use it gets rusted”

Size-Overall14%

“Cutting board to big”

Drainage11%

“does not drain”

Assembly/Installation8%

“RUSTS <48 HOURS POST INSTALL”

Quality-Overall6%

“Poor quality”

Ease Of Cleaning6%

“We just dont like how it doesnt clean up well after washing dishes”

Design-Overall5%

“This slope isnt designed correctly”

Certifications4%

“Not very standardized”

Measurement/Reading Accuracy2%

“it functions as something way inferior to 16 gauge”

Noise Level2%

“Whenever I run boiling or very hot water, the sink makes loud popping/creaking noises, which is both startling and concerning”

Top return reasons

Size-Overall63%

Value For Money6%

Advertised Vs Actual Product6%

Drainage4%

Defective Material/Parts3%

Color3%

Quality-Overall2%

Assembly/Installation2%

Product Condition2%

Material Quality1%

Common questions

Is 33 inch undermount kitchen sink profitable to sell on Amazon United States?: The niche generates $190K/yr across 44 tracked products. 3 of 11 products launched in the last 360 days are still selling. 90-day search growth is +10.7%. Flapen's verdict: Skip it (47/100).
How competitive is the 33 inch undermount kitchen sink niche?: 28 brands and 41 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 50% of demand.
What do buyers complain about in 33 inch undermount kitchen sink?: Top complaints mined from reviews: Rusts/Corrodes, Size-Overall, Drainage. The return rate is 7.9% — above our launch gate.
When does demand for 33 inch undermount kitchen sink peak?: Demand peaks in Aug; the busiest month runs 1.9× the quietest.
What does it cost to enter the 33 inch undermount kitchen sink niche?: Listings span $91.71–$502.67; the average listing price is $241.98 (sweet spot $15–$100). The average incumbent carries 665 reviews — the moat a new listing must climb.