---
title: "grey water tank — Niche Verdict: Skip it (48/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/grey-water-tank"
last_updated: "2026-07-14T04:05:09.002Z"
locale: en
meta:
  description: "weak search conversion (0.8%) — grey water tank doesn't clear our bar today."
  "og:description": "weak search conversion (0.8%) — grey water tank doesn't clear our bar today."
  "og:title": "grey water tank — Niche Verdict: Skip it (48/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **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 6% 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

## **Competition**

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%**

**Open market**

**9%**

- Ameri-Kart30% - classAcustoms26% - RecPro19% - Camco11% - A.A4% - VINGLI1% - Open — no brand owns it (14 brands, 9%)

## **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%2%$3K4%$5K6%$8K8%$11K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 90 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)](https://m.media-amazon.com/images/I/31EIwuRu0zL.jpg)**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)](https://m.media-amazon.com/images/I/31SFNjrlFML.jpg)**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)](https://m.media-amazon.com/images/I/31r4PDA0aqL.jpg)**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)](https://m.media-amazon.com/images/I/31vEsFMVWZL.jpg)**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)](https://m.media-amazon.com/images/I/31EIwuRu0zL.jpg)**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

[![classAcustoms T2100BPK RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank & Plumbing Kit 21 Gallon)](https://m.media-amazon.com/images/I/41QVnMBXYpL.jpg)**classAcustoms T2100BPK RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank & Plumbing Kit 21 Gallon)**classAcustoms**$137.92**5 rev5mo ago](https://www.amazon.com/dp/B0GHSMSH6J) [![classAcustoms T2100-TO RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank Only 21 Gallon)](https://m.media-amazon.com/images/I/41NWl9jwAJL.jpg)**classAcustoms T2100-TO RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank Only 21 Gallon)**classAcustoms**$112.79**24 rev5mo ago](https://www.amazon.com/dp/B0GHT8QLFH) [![classAcustoms T0500-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank & 12 Volt Pump 5 Gallon)](https://m.media-amazon.com/images/I/31cjdq90zzL.jpg)**classAcustoms T0500-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank & 12 Volt Pump 5 Gallon)**classAcustoms**$135.67**2 rev5mo ago](https://www.amazon.com/dp/B0GHT2RB4R) [![T5000-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank & 12 Volt Pump 50 Gallon)](https://m.media-amazon.com/images/I/31EfiqwWv2L.jpg)**T5000-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank & 12 Volt Pump 50 Gallon)**classAcustoms**$256.43**2 rev5mo ago](https://www.amazon.com/dp/B0GHSZCHY2) [![T2300BPK-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank 12v Pump & Plumbing Kit 23 Gallon)](https://m.media-amazon.com/images/I/41a5s+28tyL.jpg)**T2300BPK-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank 12v Pump & Plumbing Kit 23 Gallon)**classAcustoms**$208.63**1 rev5mo ago](https://www.amazon.com/dp/B0GHT8NVKK)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![classAcustoms T0500-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank & 12 Volt Pump 5 Gallon)](https://m.media-amazon.com/images/I/31cjdq90zzL.jpg)**classAcustoms T0500-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank & 12 Volt Pump 5 Gallon)**classAcustoms**$135.67**5.0★**▲ 271%**](https://www.amazon.com/dp/B0GHT2RB4R) [![T2300BPK-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank 12v Pump & Plumbing Kit 23 Gallon)](https://m.media-amazon.com/images/I/41a5s+28tyL.jpg)**T2300BPK-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank 12v Pump & Plumbing Kit 23 Gallon)**classAcustoms**$208.63**5.0★**▲ 262%**](https://www.amazon.com/dp/B0GHT8NVKK) [![Ameri-Kart 48 Gallon RV Black Water Tank Leak-Proof RV Water Storage Tank for Toilets in Campers Trailers Motorhomes and RVs End Discharge 70 x 28 x 8 (HT-1103)](https://m.media-amazon.com/images/I/31AsJbyRxyL.jpg)**Ameri-Kart 48 Gallon RV Black Water Tank Leak-Proof RV Water Storage Tank for Toilets in Campers Trailers Motorhomes and RVs End Discharge 70 x 28 x 8 (HT-1103)**Ameri-Kart**$401.28**4.3★**▲ 250%**](https://www.amazon.com/dp/B0CKD5X2KX) [![T3500BPK-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank 12v Pump & Plumbing Kit 35 Gallon)](https://m.media-amazon.com/images/I/41houT0k9hL.jpg)**T3500BPK-P RV Fresh Water Tank Potable Water Storage Tank for Drinking Cooking Cleaning Showering for Campers Trailers Motorhomes RVs Concession (Tank 12v Pump & Plumbing Kit 35 Gallon)**classAcustoms**$233.64**5.0★**▲ 244%**](https://www.amazon.com/dp/B0GHT879PJ) [![Tough Grade RV Holding Tanks | Made in USA (30 Gallons)](https://m.media-amazon.com/images/I/210yOm2gFXL.jpg)**Tough Grade RV Holding Tanks | Made in USA (30 Gallons)**Tough Grade**$162.81**4.8★**▲ 240%**](https://www.amazon.com/dp/B0FP2YVDL9)

**~~View all trending →~~**

## **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×

## **Reviews**

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%