Is grey water hose profitable to sell on Amazon United States?

The niche generates $185K/yr across 17 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is +147.5%. Flapen's verdict: Worth a look (54/100).

How competitive is the grey water hose niche?

6 brands and 83 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 98% of demand.

What do buyers complain about in grey water hose?

Top complaints mined from reviews: Size-Overall, Durability, Ease Of Use. The return rate is 0.7%.

When does demand for grey water hose peak?

Demand peaks in May–Jun–Jul–Aug; the busiest month runs 3.4× the quietest.

What does it cost to enter the grey water hose niche?

Listings span $5.50–$23.12; the average listing price is $11.80 (sweet spot $15–$100). The average incumbent carries 1,662 reviews — the moat a new listing must climb.

grey water hose

Worth a look

Shows low returns (0.7%), but brand-locked demand (top 5 brands take 98% of clicks) keeps it on the watch list.

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Growth

Incredible+147.5%

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

Conversion

Incredible13.7%

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

Review moat

Okay1,661.88

avg incumbent reviews — the moat a new listing must climb

Avg price

Okay$11.80

avg listing price — sweet spot $15–$100

Price range

Okay$5.50–$23.12

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

Market size

Okay$185K

$185K/yr · 114K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Okay69%

top-5 click share — leaders hold, buyers still browse

Brand share

Bad98%

top-5 brand share — brand-locked demand

Signals Trending

According to Flapen's Amazon United States niche tracking, grey water hose is a $185K/yr Amazon United States market (114K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 54/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

grey water hose market data

Units sold / yr: 15K–20K; avg 1,000–1,250/product
Revenue / yr: $177K–$236K; units × avg price
Conversion rate: 13.7%
Avg BSR: #70
Page quality: 0%
Prime: 100%
Sponsored: 59%
Out of stock: 0.0%
Avg brand age: 24 months
Avg seller age: 170 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 rising

Sellers

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

Camco36%
Valterra30%
Aussio12%
Colingmill12%
TonGass8%
WKZO2%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +147.5% search growth over the last 90 days.

Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 3.4×

Open Trend

Top grey water hose search terms

rv sewer cap61K/yr +126.1%12.6% conv.
rv sewer cap with handle5K/yr +715.6%8.9% conv.
rv sewer cap with hose outlet8K/yr +170.6%15.1% conv.
rv drain cap8K/yr +202.9%9.7% conv.
rv sewer hose cap8K/yr +129.3%8.7% conv.
camper sewer cap5K/yr +346.3%12.9% conv.
rv dump cap5K/yr +119.3%11.2% conv.
rv black tank cap3K/yr +117.3%12.7% conv.
rv waste cap4K/yr +151.3%13.5% conv.
rv sewer caps3K/yr +144.2%8.5% conv.

All search terms

Top grey water hose 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 17 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Camco 39463 Sewer Cap With Hose Connect Black 3/4

Camco$6.864.8★6,839 rev

Valterra 1216.1015 Products Inc. T1020 3 Black Termination Cap with Bayonet Hook

Valterra$5.504.8★3,830 rev

Aussio (2-Pack Black T1020-1 Waste Valve Cap with Bayonet Hook 3 with Capped 3/4 GHT RV Sewer Cap

Aussio$15.134.2★250 rev

Valterra T1020-1 Waste Valve Cap - 3 with Capped 3/4 GHT Black

Valterra$7.334.7★5,714 rev

TonGass 3 RV Sewer Valve Cap with Handle Easy-Grip Waste Valve Cap for RV Camper & Travel Trailer Secure Seal Leak Prevention Easy to Install & Use - Black 2-Pack

TonGass$23.124.9★30 rev

Newest

by launch date

TonGass 3 RV Sewer Valve Cap with Handle Easy-Grip Waste Valve Cap for RV Camper & Travel Trailer Secure Seal Leak Prevention Easy to Install & Use - Black 2-Pack

TonGass$23.1230 rev

6mo ago

WKZO Replacement RV Sewer Cap - Heavy-Duty ABS Plastic Universal Fit for Most RVs & Trailers Leak-Proof Waste Tank Cap with Secure Locking Clamp (Black 3.75)

WKZO$13.3232 rev

10mo ago

TonGass RV Sewer Cap with Lanyard Compatible with Camco Rhino Portable Waste Tank RV Sewer Hose Storage Cap for Camco Camper - Prevents Leaks & Spills from RVs Sewers System - Black 1-Pack

TonGass$9.9231 rev

11mo ago

Colingmill RV Sewer Valve Cap with Handle - 3 RV Sewer Cover Waste Valve Cap for Camper Trailer Easy to Install & Use(1 Pcs Black)

Colingmill$15.14134 rev

1y ago

Colingmill RV Sewer Valve Cap with Handle - 3 RV Sewer Cover Waste Valve Cap for Camper Trailer Easy to Install & Use(1 Pcs Clear)

Colingmill$14.95134 rev

1y ago

What buyers say about grey water hose

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

What buyers love

Size-Overall32%

“Awesome fit”

Quality-Overall10%

“No complaints”

Advertised Vs Actual Product9%

“As advertised”

Ease Of Use8%

“Easy to use”

Value For Money8%

“Totally worth it”

Efficiency4%

“Cap works great”

Leak-Proof4%

“it is not leaking”

Grip3%

“the handles are easy to grab”

Design-Overall3%

“I like the design”

Strength3%

“Sturdy”

What buyers complain about

Size-Overall26%

“Very tight fit”

Durability16%

“Break easily”

Ease Of Use7%

“Very hard to get on”

Quality-Overall7%

“Cheap product”

Material Quality7%

“Cheap Plastic”

Leak-Proof6%

“Leaks”

Strength4%

“Break easily”

Smell4%

“Cap off that stink pipe”

Rubber Quality2%

“I just don't trust rubber cords on the caps to be secure enough”

Compatibility-Overall2%

“it doesnt work with the standard universal wrenches”

Top return reasons

Size-Overall66%

Compatibility-Overall8%

Defective Material/Parts5%

Advertised Vs Actual Product4%

Connectivity-Overall3%

Assembly/Installation2%

Value For Money2%

Functionality-Overall1%

Ease Of Use1%

Leak-Proof1%

Common questions

Is grey water hose profitable to sell on Amazon United States?: The niche generates $185K/yr across 17 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is +147.5%. Flapen's verdict: Worth a look (54/100).
How competitive is the grey water hose niche?: 6 brands and 83 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 98% of demand.
What do buyers complain about in grey water hose?: Top complaints mined from reviews: Size-Overall, Durability, Ease Of Use. The return rate is 0.7%.
When does demand for grey water hose peak?: Demand peaks in May–Jun–Jul–Aug; the busiest month runs 3.4× the quietest.
What does it cost to enter the grey water hose niche?: Listings span $5.50–$23.12; the average listing price is $11.80 (sweet spot $15–$100). The average incumbent carries 1,662 reviews — the moat a new listing must climb.