---
title: "Grey Water Tank — $132K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/grey-water-tank"
last_updated: "2026-08-11T11:13:55.334Z"
locale: en
meta:
description: "Niche score 48/100 · $132K/yr market · 94K searches/yr · $178.51 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $132K/yr market · 94K searches/yr · $178.51 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Grey Water Tank — $132K/yr Amazon US Niche (2026) - Flapen"
---
# **grey water tank**
**Skip it**
Weak search conversion (0.8%) — this niche doesn't clear our bar today.
Market size 30Growth 56Conversion 10Competition 95Returns 75Price range 15Avg price 49Brand share 25Review moat 50Quality gap 40
**Competition**
**Great****20%**
top-5 click share — an open shelf
**Returns**
**Good****2.0%**
return rate — above 5% kills the launch gate
**Growth**
**Good****+29.2%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****1,508.83**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Okay****$178.51**
avg listing price — sweet spot $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$132K**
$132K/yr · 94K searches
**Brand share**
**Okay****90%**
top-5 brand share — brands hold most of the demand
**Price range**
**Bad****$10.30–$578.41**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Bad****0.8%**
search→purchase rate — share of searches ending in a sale
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, grey water tank is a $132K/yr Amazon United States market (94K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Jul–Aug–Sep–Oct. Verdict: Skip it — 48/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **grey water tank market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$89K–$134K**
- units × avg price
- **Conversion rate**
- **0.8%**
- **Avg BSR**
- **#69**
- **Page quality**
- **0%**
- **Prime**
- **39%**
- **Sponsored**
- **71%**
- **Out of stock**
- **2.8%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **177 days**
## **Competition & brand share**
Clicks spread well past the top 5 (20% combined) — an open shelf where new products get seen.
**Brands**
**20 **▲rising
**Sellers**
**76**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**20%**
Top 20: 53%
**Open market**
**9%**
- Ameri-Kart30% - classAcustoms26% - RecPro19% - Camco11% - A.A4% - VINGLI1% - Open — no brand owns it (14 brands, 9%)
## **Demand & seasonality**
Weekly Amazon search volume, last 64 weeks — +29.2% search growth over the last 90 days.
4K3KSpike '25Prime Day '25Spike '26 seasonMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jul, Aug, Sep, Oct · busiest ÷ quietest = 3.0×
[**Open Trend **](https://flapen.com/research/us/automotive/grey-water-tank/trend)
## **Top grey water tank search terms**
- **rv fresh water tank**18K/yr+84.5%0.4% conv. - **rv fresh water tanks**16K/yr-11.2%0.5% conv. - **food truck water tank**9K/yr+17.1%0.7% conv. - **gray water tanks**6K/yr+100.2%0.4% conv. - **rv grey water tank**9K/yr+10.6%0.9% conv. - **gray water tank for rv camper**11K/yr+1.5%1.1% conv. - **rv gray water tank**9K/yr+21.1%0.7% conv. - **grey water tank for rv**6K/yr+37.7%0.7% conv. - **rv freshwater tanks & inlets**5K/yr+70.0%0.0% conv. - **freshwater tank**3K/yr+17.9%0.1% conv. [**All search terms **](https://flapen.com/research/us/automotive/grey-water-tank/search-terms)
## **Top grey water tank 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%2%$3K4%$5K6%$8K8%$11K1101001K10K100K 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**Camco Rhino 15-Gallon Portable RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole - Includes Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39000)**Camco**$127.43**4.7★27,214 rev](https://www.amazon.com/dp/B07DN8X8M6) [2**Ameri-Kart 19 Gallon RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Cube Shape 30 x 16 x 10 (WT-5450)**Ameri-Kart**$120.34**4.6★191 rev](https://www.amazon.com/dp/B0CZLMV8BQ) [3**Ameri-Kart 36 Gallon RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Cube Shape 37 x 16 x 15 (WT-5549)**Ameri-Kart**$162.56**4.6★191 rev](https://www.amazon.com/dp/B0CZLPGVYW) [4**Ameri-Kart 57 Gallon RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Cube Shape 43 x 25 x 13 (WT-5553)**Ameri-Kart**$254.20**4.4★157 rev](https://www.amazon.com/dp/B0CZLNPJ2P) [5**Camco Rhino 21-Gallon RV Portable Waste Tank - Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole - Includes Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39002)**Camco**$162.17**4.7★27,214 rev](https://www.amazon.com/dp/B07CQ1WC72)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**VINGLI 6.6 Gallon Tote Tank| Portable Wheeled Fresh Water Tank for Camping/Picnic/Camper/RV Food Grade Safety & Lightweight & Durable Grey**VINGLI**$57.37**258 rev12mo ago](https://www.amazon.com/dp/B0FHJXSZY7) [**RecPro RV Water Holding Tank | 60 X 24 X 7 | for Black & Gray Water Applications | Made in USA (Left Hand Side Drain w/ 1 Lip 29 Gallon)**RecPro**$222.65**5 rev2y ago](https://www.amazon.com/dp/B0D4BPYPC2) [**Ameri-Kart 19 Gallon RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Cube Shape 30 x 16 x 10 (WT-5450)**Ameri-Kart**$120.34**191 rev2y ago](https://www.amazon.com/dp/B0CZLMV8BQ) [**Ameri-Kart 36 Gallon RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Cube Shape 37 x 16 x 15 (WT-5549)**Ameri-Kart**$162.56**191 rev2y ago](https://www.amazon.com/dp/B0CZLPGVYW) [**Ameri-Kart 57 Gallon RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Cube Shape 43 x 25 x 13 (WT-5553)**Ameri-Kart**$254.20**157 rev2y ago](https://www.amazon.com/dp/B0CZLNPJ2P)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Camco Rhino 15-Gallon Portable RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Low Drain Hole - Includes Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39000)**Camco**$127.43**4.7★**▲ 124%**](https://www.amazon.com/dp/B07DN8X8M6) [**VINGLI 6.6 Gallon Tote Tank| Portable Wheeled Fresh Water Tank for Camping/Picnic/Camper/RV Food Grade Safety & Lightweight & Durable Grey**VINGLI**$57.37**4.3★**▲ 110%**](https://www.amazon.com/dp/B0FHJXSZY7) [**Camco Rhino 36-Gallon RV Tote Tank - Features Large Heavy-Duty No-Flat Wheels & Built-in Gate Valve - Removable Steel Tow Adapter 3 Sewer Hose & More RV Accessories (39006)**Camco**$238.12**4.7★**▲ 109%**](https://www.amazon.com/dp/B07K8NK525) [**RecPro Fresh and Gray Water Holding Tank | Combo Pack | Concession/Food Truck Holding Tank (30 & 42 Gallon)**RecPro**$276.90**4.3★**▲ 108%**](https://www.amazon.com/dp/B07MVJZTCK) [**classAcustoms WT-3232 1.5 Grey Water RV Waste Holding Tank 32 Gallon Concession and Camper Waste Black Gray Tank**classAcustoms**$119.62**4.2★**▲ 84%**](https://www.amazon.com/dp/B09WBLJ68V)
**~~View all trending →~~**
## **What buyers say about grey water tank**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Solid quality”*
**Advertised Vs Actual Product**11%
*“As advertised”*
**Value For Money**9%
*“Good price”*
**Strength**7%
*“good tank sturdy”*
**Size-Overall**6%
*“not too small either”*
**Ease Of Use**5%
*“Easy to use”*
**Efficiency**5%
*“Tank works great”*
**Smell**5%
*“Smell smells wonderful”*
**Durability**4%
*“Durable, easy to use”*
**Weight Heavy**3%
*“Heavy duty well-made”*
### **What buyers complain about **
**Leak-Proof**28%
*“It leaks”*
**Durability**9%
*“Doesn't last”*
**Quality-Overall**8%
*“Very bad quality can't handle any amount of pressure with”*
**Size-Overall**7%
*“small bottle”*
**Value For Money**5%
*“don't buy the cheap”*
**Smell**3%
*“the smell is unpleasant as is the clean up”*
**Ease Of Cleaning**3%
*“Not clean, Messy, nasty”*
**Design-Overall**2%
*“Bad design”*
**Ease Of Use**2%
*“you can't fully empty it”*
**Unsustainable Design**2%
*“Poor construction material”*
### **Top return reasons **
**Size-Overall**53%
**Leak-Proof**8%
**Advertised Vs Actual Product**6%
**Defective Material/Parts**5%
**Value For Money**4%
**Compatibility-Overall**4%
**Functionality-Overall**3%
**Material Quality**2%
**Weight Heavy**2%
**Assembly/Installation**1%
## **Common questions**
- **Is grey water tank profitable to sell on Amazon United States?**
- The niche generates $132K/yr across 90 tracked products. 1 of 10 products launched in the last 360 days are still selling. 90-day search growth is +29.2%. Flapen's verdict: Skip it (48/100).
- **How competitive is the grey water tank niche?**
- 20 brands and 76 sellers compete. The top 5 products take 20% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in grey water tank?**
- Top complaints mined from reviews: Leak-Proof, Durability, Quality-Overall. The return rate is 2.0%.
- **When does demand for grey water tank peak?**
- Demand peaks in Jul–Aug–Sep–Oct; the busiest month runs 3.0× the quietest.
- **What does it cost to enter the grey water tank niche?**
- Listings span $10.30–$578.41; the average listing price is $178.51 (sweet spot $15–$100). The average incumbent carries 1,509 reviews — the moat a new listing must climb.
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