Is rv vent cap profitable to sell on Amazon United States?

The niche generates $58K/yr across 27 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +92.5%. Flapen's verdict: Worth a look (58/100).

How competitive is the rv vent cap niche?

20 brands and 86 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 69% of demand.

What do buyers complain about in rv vent cap?

Top complaints mined from reviews: Smell, Instructions/User Manual/Troubleshooting, Advertised Vs Actual Product. The return rate is 1.6%.

When does demand for rv vent cap peak?

Demand peaks in May–Jun–Jul–Aug; the busiest month runs 2.9× the quietest.

What does it cost to enter the rv vent cap niche?

Listings span $6.69–$32.26; the average listing price is $14.43 (sweet spot $15–$100). The average incumbent carries 577 reviews — the moat a new listing must climb.

rv vent cap

Worth a look

Shows demand growing +92.5% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Growth

Great+92.5%

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

Returns

Great1.6%

return rate — above 5% kills the launch gate

Conversion

Great7.6%

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

Review moat

Good577.11

avg incumbent reviews — the moat a new listing must climb

Avg price

Good$14.43

avg listing price — sweet spot $15–$100

Price range

Good$6.69–$32.26

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

Brand share

Good69%

top-5 brand share — brands hold most of the demand

Competition

Okay55%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Market size

Bad$58K

$58K/yr · 53K searches

According to Flapen's Amazon United States niche tracking, rv vent cap is a $58K/yr Amazon United States market (53K searches/yr). The top 5 brands hold 69% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 58/100.

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

rv vent cap market data

Units sold / yr: 5K–6K; avg 100–250/product
Revenue / yr: $72K–$87K; units × avg price
Conversion rate: 7.6%
Avg BSR: #161
Page quality: 0%
Prime: 100%
Sponsored: 89%
Out of stock: 4.2%
Avg brand age: 46 months
Avg seller age: 189 days

Competition & brand share

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 falling

Sellers

Top-5 brand share

69%

Top 20: 100%

Top-5 click share

55%

Top 20: 92%

Open market

26%

Camco22%
Safoner16%
luxlead13%
Aussio13%
RVGUARD6%
Lippert Components5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +92.5% search growth over the last 90 days.

Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 2.9×

Open Trend

Top rv vent cap search terms

rv vent cap16K/yr +93.4%8.1% conv.
rv plumbing vent cap8K/yr +105.4%10.3% conv.
rv roof vent cap6K/yr +110.4%8.5% conv.
rv sewer vent cap6K/yr +226.0%7.3% conv.
rv sewer vent5K/yr +53.0%4.5% conv.
rv roof vent caps3K/yr +92.8%5.1% conv.
rv plumbing vent3K/yr +62.7%8.4% conv.
rv sewer vent cap for roof5K/yr -6.1%8.8% conv.

All search terms

Top rv vent cap 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Safoner Aluminum RV Roof Sewer Plumbing Vent Cap Kit- Metal Replacement for Plastic Covers Exterior Accessories for Trailers Campers and Motorhomes - White (1 Pack)

Safoner$17.034.8★242 rev

Aussio (2 Pack White RV Roof Vent Cover Kits with Putty Tape and Screws Camper Vents Cap for Trailer RV Roof Vent Cover Replacement Camper Plumbing Vents Caps Kit for 1 to 2-3/8 OD Pipe

Aussio$13.904.6★496 rev

Camco 40034 Replacement Plumbing Vent Cap (Polar White)

Camco$7.444.7★2,392 rev

luxlead RV Plumbing Vent Caps - Camper Vent Cap Replacement Kit for 1 to 2 3/8 Inch Pipe - White (2 Pack)

luxlead$14.074.6★1,113 rev

RVGUARD 2 Pack RV Vent Cap Kit with Screen RV Sewer Vent Cap for Roof White RV Plumbing Cap Replacement for Camper Trailer Motorhome Fits 1 to 2 3/8 Pipe

RVGUARD$14.094.6★103 rev

Newest

by launch date

Thyle 2 Pack RV Plumbing Vent Cap Replacement RV Plumbing Vent Cover for Up to 2 Pipes Easy Install Protects from Rain & Debris Ensure Proper Ventilation for Motorhome Camper Trailer Roof Vents

Thyle$10.034 rev

2mo ago

Caravista Aluminum RV Plumbing Vent Cap Kit - RV Roof Sewer Vent Cover with Screen - Metal Replacement for Plastic Covers - Camper Roof Pipe Cap for Trailers Campers and Motorhomes (White)

Caravista$13.5619 rev

7mo ago

SheeChung RV Roof Vent Cap Aluminum Camper Plumbing Vent Caps Replacement Vent Cover Kit for Trailers Campers Motorhomes - Fits 1 to 2-3/8 Inch Pipes

SheeChung$12.9320 rev

7mo ago

Sporthfish RV Plumbing Vent Cap Sewer Vents Caps for Roof Fits 1 to 2 3/8 Inch Pipe RV-Vent-Covers-for-Roof with Sealing Putty Plastic White 2 Pack Cover for Motorhome Trailer Camper Roofs

Sporthfish$13.9924 rev

1y ago

Safoner Aluminum RV Roof Sewer Plumbing Vent Cap Replacement- Exterior Accessories for Trailers Campers and Motorhomes- 2 Packs(White)

Safoner$32.26242 rev

1y ago

What buyers say about rv vent cap

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

What buyers love

Size-Overall20%

“Easy fit”

Quality-Overall14%

“Excellent quality”

Assembly/Installation13%

“Great and installed fine”

Advertised Vs Actual Product11%

“As advertised”

Material Quality5%

“These worked really well seem to be a material that will last”

Value For Money5%

“worth the money”

Durability4%

“Durable and great quality”

Strength3%

“The entire assembly is solid”

Efficiency3%

“Works well”

Maintenance And Repair3%

“Fix perfectly and easy to install”

What buyers complain about

Smell7%

“never had the stink return in the interior”

Instructions/User Manual/Troubleshooting7%

“Delivery instructions not followed”

Advertised Vs Actual Product7%

“does not match the video of the first generation 360 siphon that is on the Amazon page”

Material Quality7%

“I expected that it would be plastic”

Design-Overall6%

“Buyer beware, you will not get butyl tape and the new design appears nowhere near as easy as the original one”

Quality-Overall5%

“The felt a little cheap feeling”

Mounting5%

“It does not come with mounting hardware”

Assembly/Installation4%

“once assembled it cannot be disassembled”

Durability4%

“lasted about 6 months before it disappeared”

Thin4%

“very thin plastic”

Top return reasons

Size-Overall44%

Advertised Vs Actual Product9%

Defective Material/Parts7%

Compatibility-Overall6%

Functionality-Overall5%

Quality-Overall4%

Material Quality4%

Value For Money4%

Mounting3%

Adhesion/Stickiness2%

Common questions

Is rv vent cap profitable to sell on Amazon United States?: The niche generates $58K/yr across 27 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +92.5%. Flapen's verdict: Worth a look (58/100).
How competitive is the rv vent cap niche?: 20 brands and 86 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 69% of demand.
What do buyers complain about in rv vent cap?: Top complaints mined from reviews: Smell, Instructions/User Manual/Troubleshooting, Advertised Vs Actual Product. The return rate is 1.6%.
When does demand for rv vent cap peak?: Demand peaks in May–Jun–Jul–Aug; the busiest month runs 2.9× the quietest.
What does it cost to enter the rv vent cap niche?: Listings span $6.69–$32.26; the average listing price is $14.43 (sweet spot $15–$100). The average incumbent carries 577 reviews — the moat a new listing must climb.