---
title: "Rv Vent Cap — $58K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/rv-vent-cap"
last_updated: "2026-08-09T13:40:34.227Z"
locale: en
meta:
description: "Niche score 58/100 · $58K/yr market · 53K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 58/100 · $58K/yr market · 53K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Rv Vent Cap — $58K/yr Amazon US Niche (2026) - Flapen"
---
# **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.
Market size 15Growth 88Conversion 78Competition 49Returns 82Price range 68Avg price 70Brand share 60Review moat 73Quality gap 23
**Growth**
**Great****+92.5%**
90-day search growth — must beat 0% to launch
**Returns**
**Great****1.6%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****7.6%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****577.11**
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**
**Good****69%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****55%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.6★**
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 ~~](https://flapen.com/research/methodology)
## **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**
**86**
**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.
2K1KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 2.9×
[**Open Trend **](https://flapen.com/research/us/automotive/rv-vent-cap/trend)
## **Top rv vent cap search terms**
- **rv vent cap**16K/yr+93.4%8.1% conv. - **rv plumbing vent cap**8K/yr+105.4%10.3% conv. - **rv roof vent cap**6K/yr+110.4%8.5% conv. - **rv sewer vent cap**6K/yr+226.0%7.3% conv. - **rv sewer vent**5K/yr+53.0%4.5% conv. - **rv roof vent caps**3K/yr+92.8%5.1% conv. - **rv plumbing vent**3K/yr+62.7%8.4% conv. - **rv sewer vent cap for roof**5K/yr-6.1%8.8% conv. [**All search terms **](https://flapen.com/research/us/automotive/rv-vent-cap/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.
0%4%$2K8%$5K12%$7K16%$9K1101001K10K 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**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**$17.03**4.8★242 rev](https://www.amazon.com/dp/B0DQQ2343L) [2**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**$13.90**4.6★496 rev](https://www.amazon.com/dp/B0CN6MPM26) [3**Camco 40034 Replacement Plumbing Vent Cap (Polar White)**Camco**$7.44**4.7★2,392 rev](https://www.amazon.com/dp/B000BQWQ0A) [4**luxlead RV Plumbing Vent Caps - Camper Vent Cap Replacement Kit for 1 to 2 3/8 Inch Pipe - White (2 Pack)**luxlead**$14.07**4.6★1,113 rev](https://www.amazon.com/dp/B09BC7J4F7) [5**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**$14.09**4.6★103 rev](https://www.amazon.com/dp/B0D7PSL6GL)
**~~View all top sellers →~~**
### **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**$10.03**4 rev2mo ago](https://www.amazon.com/dp/B0GWCN2YMQ) [**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**$13.56**19 rev7mo ago](https://www.amazon.com/dp/B0G4ZPDM4X) [**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**$12.93**20 rev7mo ago](https://www.amazon.com/dp/B0G4RF4FCJ) [**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**$13.99**24 rev1y ago](https://www.amazon.com/dp/B0F8VMRMXX) [**Safoner Aluminum RV Roof Sewer Plumbing Vent Cap Replacement- Exterior Accessories for Trailers Campers and Motorhomes- 2 Packs(White)**Safoner**$32.26**242 rev1y ago](https://www.amazon.com/dp/B0DSWFM8R2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$10.03**4.7★**▲ 187%**](https://www.amazon.com/dp/B0GWCN2YMQ) [**Safoner Aluminum RV Roof Sewer Plumbing Vent Cap Replacement- Exterior Accessories for Trailers Campers and Motorhomes- 2 Packs(White)**Safoner**$32.26**4.8★**▲ 155%**](https://www.amazon.com/dp/B0DSWFM8R2) [**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**$12.93**4.8★**▲ 116%**](https://www.amazon.com/dp/B0G4RF4FCJ) [**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**$13.56**4.9★**▲ 103%**](https://www.amazon.com/dp/B0G4ZPDM4X) [**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**$13.99**4.8★**▲ 102%**](https://www.amazon.com/dp/B0F8VMRMXX)
**~~View all trending →~~**
## **What buyers say about rv vent cap**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**20%
*“Easy fit”*
**Quality-Overall**14%
*“Excellent quality”*
**Assembly/Installation**13%
*“Great and installed fine”*
**Advertised Vs Actual Product**11%
*“As advertised”*
**Material Quality**5%
*“These worked really well seem to be a material that will last”*
**Value For Money**5%
*“worth the money”*
**Durability**4%
*“Durable and great quality”*
**Strength**3%
*“The entire assembly is solid”*
**Efficiency**3%
*“Works well”*
**Maintenance And Repair**3%
*“Fix perfectly and easy to install”*
### **What buyers complain about **
**Smell**7%
*“never had the stink return in the interior”*
**Instructions/User Manual/Troubleshooting**7%
*“Delivery instructions not followed”*
**Advertised Vs Actual Product**7%
*“does not match the video of the first generation 360 siphon that is on the Amazon page”*
**Material Quality**7%
*“I expected that it would be plastic”*
**Design-Overall**6%
*“Buyer beware, you will not get butyl tape and the new design appears nowhere near as easy as the original one”*
**Quality-Overall**5%
*“The felt a little cheap feeling”*
**Mounting**5%
*“It does not come with mounting hardware”*
**Assembly/Installation**4%
*“once assembled it cannot be disassembled”*
**Durability**4%
*“lasted about 6 months before it disappeared”*
**Thin**4%
*“very thin plastic”*
### **Top return reasons **
**Size-Overall**44%
**Advertised Vs Actual Product**9%
**Defective Material/Parts**7%
**Compatibility-Overall**6%
**Functionality-Overall**5%
**Quality-Overall**4%
**Material Quality**4%
**Value For Money**4%
**Mounting**3%
**Adhesion/Stickiness**2%
## **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.
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