grey water tank
Skip itWeak search conversion (0.8%) — this niche doesn't clear our bar today.
Competition
Great20%top-5 click share — an open shelf
Returns
Good2.0%return rate — above 5% kills the launch gate
Growth
Good+29.2%90-day search growth — must beat 0% to launch
Review moat
Okay1,508.83avg incumbent reviews — the moat a new listing must climb
Avg price
Okay$178.51avg listing price — sweet spot $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$132K$132K/yr · 94K searches
Brand share
Okay90%top-5 brand share — brands hold most of the demand
Price range
Bad$10.30–$578.41cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Bad0.8%search→purchase rate — share of searches ending in a sale
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
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.Peak months: Jul, Aug, Sep, Oct · busiest ÷ quietest = 3.0×
Top grey water tank search terms
- rv fresh water tank18K/yr
- rv fresh water tanks16K/yr
- food truck water tank9K/yr
- gray water tanks6K/yr
- rv grey water tank9K/yr
- gray water tank for rv camper11K/yr
- rv gray water tank9K/yr
- grey water tank for rv6K/yr
- rv freshwater tanks & inlets5K/yr
- freshwater tank3K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$127.434.7★27,214 rev
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$120.344.6★191 rev
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$162.564.6★191 rev
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$254.204.4★157 rev
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$162.174.7★27,214 rev
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$57.37258 rev
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$222.655 rev
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$120.34191 rev
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$162.56191 rev
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$254.20157 rev
Trending
90-day click momentumCamco 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$127.434.7★
VINGLI 6.6 Gallon Tote Tank| Portable Wheeled Fresh Water Tank for Camping/Picnic/Camper/RV Food Grade Safety & Lightweight & Durable Grey
VINGLI$57.374.3★
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$238.124.7★
RecPro Fresh and Gray Water Holding Tank | Combo Pack | Concession/Food Truck Holding Tank (30 & 42 Gallon)
RecPro$276.904.3★
classAcustoms WT-3232 1.5 Grey Water RV Waste Holding Tank 32 Gallon Concession and Camper Waste Black Gray Tank
classAcustoms$119.624.2★
What buyers say about grey water tank
What buyers praise and complain about, mined from review topics.What buyers love
“Solid quality”
“As advertised”
“Good price”
“good tank sturdy”
“not too small either”
“Easy to use”
“Tank works great”
“Smell smells wonderful”
“Durable, easy to use”
“Heavy duty well-made”
What buyers complain about
“It leaks”
“Doesn't last”
“Very bad quality can't handle any amount of pressure with”
“small bottle”
“don't buy the cheap”
“the smell is unpleasant as is the clean up”
“Not clean, Messy, nasty”
“Bad design”
“you can't fully empty it”
“Poor construction material”
Top return reasons
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.