---
title: "33 Inch Undermount Kitchen Sink — $190K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/33-inch-undermount-kitchen-sink"
last_updated: "2026-08-08T06:56:10.888Z"
locale: en
meta:
description: "Niche score 47/100 · $190K/yr market · 34K searches/yr · $241.98 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $190K/yr market · 34K searches/yr · $241.98 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "33 Inch Undermount Kitchen Sink — $190K/yr Amazon US Niche (2026) - Flapen"
---
# **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.
Market size 38Growth 38Conversion 29Competition 82Returns 15Price range 2Avg price 40Brand share 85Review moat 71Quality gap 52
**Brand share**
**Great****50%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****33%**
top-5 click share — an open shelf
**Review moat**
**Good****664.95**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
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**
**Okay****2.3%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****7.9%**
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**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
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 ~~](https://flapen.com/research/methodology)
## **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**
**41**
**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.
1K750Spike '25Prime Day '25Spike '26 seasonAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJul
Peak months: Aug · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/33-inch-undermount-kitchen-sink/trend)
## **Top 33 inch undermount kitchen sink search terms**
- **undermount kitchen sink 33 inch**6K/yr+33.1%0.8% conv. - **33 inch undermount kitchen sink**15K/yr-13.2%1.5% conv. - **33 undermount kitchen sink**9K/yr+11.3%2.0% conv. - **kitchen sink undermount 33 inch**4K/yr+44.7%0.7% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/33-inch-undermount-kitchen-sink/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.
0%3%$6K6%$11K9%$17K12%$23K1101001K10K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**KRAUS Fairlane 33-inch Undermount Single Bowl 18-Gauge Stainless Steel Kitchen Sink KHU640-33**Kraus**$240.91**4.7★126 rev](https://www.amazon.com/dp/B0D9MW6K56) [2**Sarlai 33 Kitchen Sink Undermount 33 x 19 Inch Undermount Sink Workstation**Sarlai**$253.34**4.5★739 rev](https://www.amazon.com/dp/B0879LST9J) [3**MAYESAR 33 Inch Kitchen Sinks Undermount - 33 x 19 Stainless Steel Undermount Workstation 16 Gauge Single Bowl Deep Under Counter Kitchen Sink Basin**MAYESAR**$230.13**4.6★45 rev](https://www.amazon.com/dp/B0FJR5HXHK) [4**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**$251.80**4.6★865 rev](https://www.amazon.com/dp/B0D83T23BT) [5**KRAUS Dex 33-inch Undermount 16 Gauge Stainless Steel Single Bowl Kitchen Sink KA1US33B**Kraus**$302.51**4.6★344 rev](https://www.amazon.com/dp/B083Y657ZX)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**33 x 22 Drop In Kitchen Sink T304 18 Gauge Stainless Steel Dual Mount**Gracava**$151.28**2 rev2mo ago](https://www.amazon.com/dp/B0GZVFKWZH) [**33 Inch Undermount Kitchen Sink Stainless Steel Single Bowl Flush Rim 2.0cm Edge & 1.0mm Wall Brushed Bottom Grid and Drain Included**PeakPursuit**$93.33**1 rev3mo ago](https://www.amazon.com/dp/B0GX64WGDC) [**3318 Inch Undermount Kitchen Sink Thick reinforced Stainless Steel Deep Single Bowl Workstation Sinks Integrated Ledge Design with Full Accessories**JHWSXWAWJ**$176.40**3 rev5mo ago](https://www.amazon.com/dp/B0GLXR3NNL) [**Shinmou 33 Inch Undermount Kitchen Sink 33x19 Inch Kitchen Sink**shinmou**$158.62**11 rev6mo ago](https://www.amazon.com/dp/B0GGGLX93X) [**Selosyem 33-Inch Undermount Stainless Steel Kitchen Sink - 33x19 Sink 16 Gauge 304 Stainless Steel Single Bowl Handmade Sink Basin With Accessories**Selosyem**$256.04**32 rev7mo ago](https://www.amazon.com/dp/B0GCYTRKLP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**33 x 22 Drop In Kitchen Sink T304 18 Gauge Stainless Steel Dual Mount**Gracava**$151.28**4.5★**▲ 256%**](https://www.amazon.com/dp/B0GZVFKWZH) [**3318 Inch Undermount Kitchen Sink Thick reinforced Stainless Steel Deep Single Bowl Workstation Sinks Integrated Ledge Design with Full Accessories**JHWSXWAWJ**$176.40**2.8★**▲ 254%**](https://www.amazon.com/dp/B0GLXR3NNL) [**Selosyem 33-Inch Undermount Stainless Steel Kitchen Sink - 33x19 Sink 16 Gauge 304 Stainless Steel Single Bowl Handmade Sink Basin With Accessories**Selosyem**$256.04**4.6★**▲ 225%**](https://www.amazon.com/dp/B0GCYTRKLP) [**33 Inch Undermount Kitchen Sink Stainless Steel Single Bowl Flush Rim 2.0cm Edge & 1.0mm Wall Brushed Bottom Grid and Drain Included**PeakPursuit**$93.33**1.0★**▲ 220%**](https://www.amazon.com/dp/B0GX64WGDC) [**Lordear 33 Inch Black Undermount Kitchen Sink Workstation SUS304 16 Gauge Stainless Steel Single Bowl Basin with Built-in Black Accessories 33x19x10 Gunmetal Black**Lordear**$283.34**4.6★**▲ 152%**](https://www.amazon.com/dp/B0DGQCJ26X)
**~~View all trending →~~**
## **What buyers say about 33 inch undermount kitchen sink**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**30%
*“BEAUTIFUL QUALITY”*
**Design-Overall**12%
*“Great look and function”*
**Value For Money**7%
*“Great product for the money”*
**Assembly/Installation**6%
*“Easy installation”*
**Ease Of Cleaning**6%
*“Easy to wipe clean”*
**Strength**4%
*“Heavy duty”*
**Add-Ons/Attachments**4%
*“Love that it comes with all the accessories”*
**Weight Heavy**4%
*“Heavy duty”*
**Size-Overall**4%
*“Fits perfectly on standard cabinet bases”*
**Durability**3%
*“durable”*
### **What buyers complain about **
**Rusts/Corrodes**18%
*“After 6 months of use it gets rusted”*
**Size-Overall**14%
*“Cutting board to big”*
**Drainage**11%
*“does not drain”*
**Assembly/Installation**8%
*“RUSTS <48 HOURS POST INSTALL”*
**Quality-Overall**6%
*“Poor quality”*
**Ease Of Cleaning**6%
*“We just dont like how it doesnt clean up well after washing dishes”*
**Design-Overall**5%
*“This slope isnt designed correctly”*
**Certifications**4%
*“Not very standardized”*
**Measurement/Reading Accuracy**2%
*“it functions as something way inferior to 16 gauge”*
**Noise Level**2%
*“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-Overall**63%
**Value For Money**6%
**Advertised Vs Actual Product**6%
**Drainage**4%
**Defective Material/Parts**3%
**Color**3%
**Quality-Overall**2%
**Assembly/Installation**2%
**Product Condition**2%
**Material Quality**1%
## **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.
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