air gap cover
Skip itA small market ($49K/yr) — this niche doesn't clear our bar today.
Conversion
Great7.1%search→purchase rate — share of searches ending in a sale
Review moat
Great492.6avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Good$12.56avg listing price — sweet spot $15–$100
Competition
Good53%top-5 click share — leaders hold, buyers still browse
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Price range
Okay$4.34–$21.60cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+1.0%90-day search growth — must beat 0% to launch
Returns
Bad6.0%return rate — above 5% kills the launch gate
Market size
Bad$49K$49K/yr · 55K searches
According to Flapen's Amazon United States niche tracking, air gap cover is a $49K/yr Amazon United States market (55K searches/yr). The top 5 brands hold 79% of demand. Verdict: Skip it — 42/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
air gap cover market data
- Units sold / yr
- 4K–5K
- avg 100–250/product
- Revenue / yr
- $50K–$63K
- units × avg price
- Conversion rate
- 7.1%
- Avg BSR
- #146
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 84%
- Out of stock
- 0.0%
- Avg brand age
- 55 months
- Avg seller age
- 192 days
Competition & brand share
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.Brands
14 falling
Sellers
21
Top-5 brand share
79%
Top 20: 100%
Top-5 click share
53%
Top 20: 95%
Open market
16%
- ALEASHA36%
- PetrelWing16%
- Danco11%
- PRIME-LINE10%
- Kraus6%
- SDSNTE5%
- Open — no brand owns it (8 brands, 16%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +1.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top air gap cover search terms
- dishwasher air gap cover21K/yr
- air gap cover16K/yr
- dishwasher vent cap6K/yr
- dishwasher drain cap5K/yr
- dishwasher overflow cap4K/yr
- air gap cap3K/yr
Top air gap cover 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
Dishwasher Air Gap Cover for Kitchen Solid Brass Air Gap Cap with Skirted Design Dishwasher Overflow Vent Cap Replacement Only Brushed Nickel
ALEASHA$13.544.8★129 rev
DANCO Kitchen Air Gap Cap Brushed Nickel 1-Pack (10567)
Danco$7.314.4★1,972 rev
Dishwasher Air Gap Cover Black only Skirted Replacement Black air gap dishwasher Solid Brass Matte Black Finish
PetrelWing$13.114.7★1,019 rev
Prime-Line MP53045 Dishwasher Air Gap Cover Stamped Steel Chrome Plated Finish (Single Pack)
PRIME-LINE$4.344.5★485 rev
Dishwasher Air Gap Cover for Kitchen Solid Brass Air Gap Cap with Skirted Design Dishwasher Overflow Vent Cap Replacement Only Matte Black
ALEASHA$13.634.8★129 rev
Newest
by launch date
Universal Disposal Dishwasher Drain Plug Cap
OFUNPARRTS$14.051 rev
1-5/8 cap diameter 2-1/4 Dishwasher Plastic Air Gap Cap Cover Only Replacement Cap for air gap dishwasher Air Gap Cover Fits Most Air Gap Bodies (Silver)
LiXiongBao$7.493 rev
Dishwasher Air Gap Cover for Kitchen Solid Brass Air Gap Cap with Skirted Design Dishwasher Overflow Vent Cap Replacement Only Brushed Stainless Steel
ALEASHA$13.44129 rev
Dishwasher Air Gap Cover for Kitchen Solid Brass Air Gap Cap with Skirted Design Dishwasher Overflow Vent Cap Replacement Only Chrome
ALEASHA$13.52129 rev
Dishwasher Air Gap Cover for Kitchen Solid Brass Air Gap Cap with Skirted Design Dishwasher Overflow Vent Cap Replacement Only Brushed Nickel
ALEASHA$13.54129 rev
Trending
90-day click momentum1-5/8 cap diameter 2-1/4 Dishwasher Plastic Air Gap Cap Cover Only Replacement Cap for air gap dishwasher Air Gap Cover Fits Most Air Gap Bodies (Silver)
LiXiongBao$7.494.4★
Universal Disposal Dishwasher Drain Plug Cap
OFUNPARRTS$14.051.0★
Dishwasher Air Gap Cover for Kitchen Solid Brass Air Gap Cap with Skirted Design Dishwasher Overflow Vent Cap Replacement Only Brushed Stainless Steel
ALEASHA$13.444.8★
Dishwasher Air Gap Cover for Kitchen Solid Brass Air Gap Cap with Skirted Design Dishwasher Overflow Vent Cap Replacement Only Brushed Gold
ALEASHA$13.484.8★
Dishwasher Air Gap Cover for Kitchen Solid Brass Air Gap Cap with Skirted Design Dishwasher Overflow Vent Cap Replacement Only Chrome
ALEASHA$13.524.8★
What buyers say about air gap cover
What buyers praise and complain about, mined from review topics.What buyers love
“Easy fit”
“As advertised”
“Good value”
“Easy Install”
“The quality of the build is excellent”
“I love the color”
“feels durable”
“Works great”
“Easy to use”
“Well designed”
What buyers complain about
“Sealing could be tighter as it leaks”
“Thought it was going to be too small”
“Water comes out the bottom”
“this is not the right color”
“MADE OF PLASTIC”
“I dont know if theres any rust inside”
“However, not tall enough”
“being cheap plastic may not last long”
“also cheap-looking”
“Not for thick countertops”
Top return reasons
Common questions
- Is air gap cover profitable to sell on Amazon United States?
- The niche generates $49K/yr across 25 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is +1.0%. Flapen's verdict: Skip it (42/100).
- How competitive is the air gap cover niche?
- 14 brands and 21 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 79% of demand.
- What do buyers complain about in air gap cover?
- Top complaints mined from reviews: Leak-Proof, Size-Overall, Water Resistance. The return rate is 6.0% — above our launch gate.
- When does demand for air gap cover peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the air gap cover niche?
- Listings span $4.34–$21.60; the average listing price is $12.56 (sweet spot $15–$100). The average incumbent carries 493 reviews — the moat a new listing must climb.