Radiator Key
FailDemand is soft, at -86.4% this quarter, so Radiator Key is a Fail.
- Flapen Score
- 47 / 100Ranks 4,157 of 7,287 Automotive niches · −2 vs the category median of 4947
- Market size
- $40K/yr70K searches / yr
- 90-day growth
- -86.4%search demand this quarter
- Competition
- 50%top-5 click share · 18 brands · 36 sellers
Flapen Score
Radiator Key against its category
The dotted line is the Automotive average. Past it, Radiator Key is stronger. Inside it, weaker.
Market
The Radiator Key market on Amazon at a glance
Shoppers on Amazon United States searched for Radiator Key 70K times last year and spent an estimated $40K. The top 5 brands take 61% of clicks. Demand peaks in Jan–Feb–Oct–Nov–Dec. Flapen scores it 47 out of 100, a Fail.
01 · Demand
An estimated 7.5% of those searches ended in a purchase.
Shoppers searched for this 70K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 7.5% of those searches ended in a purchase. Searches in the last 90 days moved -86.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $40K a year.
- Searches, last 12 months
- 70K
- Growth, 90 days vs prior 90
- -86.4%
- Conversion, latest week
- 7.5%
- Market size, estimated
- $40Ka year
- Peak month
- November37.8× the quietest month
- Top search term
- radiator key30K searches a year
02 · Price
A sale here is worth $7.52.
Listings sell for $7.52 on average, from $2.46 to $12.22. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 250 to 500 of them. At $7.52 that is $2K to $4K a year per listing.
- Average price
- $7.52under the $15 to $100 sweet spot
- Price range
- $2.46–$12.22
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 8K–10K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $2K–$4K
- Returns
- 1.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
67% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 3.2% of listings are out of stock. The average listing ranks #6,655 within Caps. It carries 606 reviews at 4.27 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 67%
- Prime listings
- 100%
- Out of stock, average day
- 3.2%
- Average rank
- #6,655in Caps
- Average rating
- 4.27 starsAmazon United States average 4.42 stars
- Average reviews
- 606per listing
- Listings tracked
- 21
04 · Newcomers
0 of last year's 8 launches cleared the first-year sales bar.
8 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 41 months on average, so the names here are settling in.
- Launched, last 12 months
- 8
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 41 months
Products
Top Radiator Key products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 9, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
BRBASAP 3 Packs Radiator Key with 1 Rings Bleeder Keys for Bleeding Old Home Radiator Air Valve Durable Handle Tool to Turn Off Water Valves Bleed Keys for Home Radiator Maintenance and Repairs
- Price
- $6.63
- Rating
- 4.6/5
- Reviews
- 38
- Age
- 1y ago

Hayatooly 4-Way Water Key Premium Sillcock Key Radiator Bleeder Key Multi-Functional Shut off Tool for 1/4 9/32 5/16 11/32 Valve & Spigot Ideal for Home Public & Commercial
- Price
- $9.10
- Rating
- 4.7/5
- Reviews
- 58
- Age
- 5mo ago

Hayatooly Sillcock Key and Radiator Key Set (6-Piece) - Includes 2 Water Meter Keys & 4 Bleeder Valves for 1/4 9/32 5/16 11/32 Inch Outdoor Faucets Spigots and Radiators - Home & Commercial
- Price
- $9.73
- Rating
- 4.6/5
- Reviews
- 51
- Age
- 6mo ago

DURATECH 4 Way Sillcock Key Set Utility Key Multi-functional Water Key 2-Pack for Valve Faucet and Spigots
- Price
- $12.22
- Rating
- 4.7/5
- Reviews
- 2,533
- Age
- 4y ago

TOYMIS 6Pcs Radiator Valve Keys Radiator Bleed Hole Key Radiator Vent Air Valve Key Plumbing Valve Key for Radiators and Faucet (Silver)
- Price
- $6.80
- Rating
- 4.4/5
- Reviews
- 351
- Age
- 5y ago
Trending
estimated 90-day click momentum
Hayatooly 4-Way Water Key Premium Sillcock Key Radiator Bleeder Key Multi-Functional Shut off Tool for 1/4 9/32 5/16 11/32 Valve & Spigot Ideal for Home Public & Commercial
- Price
- $9.10
- Rating
- 4.7/5
- Reviews
- 58
- Age
- 5mo ago

FDXGYH 4 Pcs Radiator Keys Radiator Bleeding Air Valve Keys Zinc Alloy Radiator On-off Valve Replacement for Bleeding Home Radiators (Black)
- Price
- $6.46
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 5mo ago

FDXGYH 4 Pcs Radiator Keys Radiator Bleeding Air Valve Keys Zinc Alloy Radiator On-off Valve Replacement for Bleeding Home Radiators (T-Type)
- Price
- $7.78
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 5mo ago

Radiator Bleed Key Alloy Steel Vent Valve Handle Imperial and Metric Square Key for All 5 x 5 mm Valve Standard Radiators
- Price
- $10.58
- Rating
- 4.0/5
- Reviews
- 1
- Age
- 8mo ago

Hayatooly Sillcock Key and Radiator Key Set (6-Piece) - Includes 2 Water Meter Keys & 4 Bleeder Valves for 1/4 9/32 5/16 11/32 Inch Outdoor Faucets Spigots and Radiators - Home & Commercial
- Price
- $9.73
- Rating
- 4.6/5
- Reviews
- 51
- Age
- 6mo ago
Newest
by launch date
FDXGYH 4 Pcs Radiator Keys Radiator Bleeding Air Valve Keys Zinc Alloy Radiator On-off Valve Replacement for Bleeding Home Radiators (Black)
- Price
- $6.46
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 5mo ago

FDXGYH 4 Pcs Radiator Keys Radiator Bleeding Air Valve Keys Zinc Alloy Radiator On-off Valve Replacement for Bleeding Home Radiators (T-Type)
- Price
- $7.78
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 5mo ago

Hayatooly 4-Way Water Key Premium Sillcock Key Radiator Bleeder Key Multi-Functional Shut off Tool for 1/4 9/32 5/16 11/32 Valve & Spigot Ideal for Home Public & Commercial
- Price
- $9.10
- Rating
- 4.7/5
- Reviews
- 58
- Age
- 5mo ago

Hayatooly Sillcock Key and Radiator Key Set (6-Piece) - Includes 2 Water Meter Keys & 4 Bleeder Valves for 1/4 9/32 5/16 11/32 Inch Outdoor Faucets Spigots and Radiators - Home & Commercial
- Price
- $9.73
- Rating
- 4.6/5
- Reviews
- 51
- Age
- 6mo ago

10Pcs Radiator Bleeding Air Valve Key Bleed Hole Keys for Home Radiator Hot Water Flush Plumbing Tool Replacement Silver
- Price
- $6.24
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 7mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 50% of clicks. Leaders hold, but buyers still shop past them.
Brands
18 rising
Sellers
36
Est. top-5 brand share
61%
Top 20: 100%
Est. top-5 click share
50%
Top 20: 99%
Open market
32%
- Hayatooly20%
- BRBASAP14%
- FDXGYH11%
- DURATECH8%
- TOYMIS7%
- HTBMALL7%
Demand
Radiator Key search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Feb, Oct, Nov, Dec · busiest ÷ quietest = 37.8×
Search terms
Top Radiator Key search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- radiator key30K/yr
- radiator bleed key15K/yr
- radiator keys for bleeding old home radiator13K/yr
- radiator bleeder key5K/yr
- radiator keys for bleeding5K/yr
- key to bleed radiators3K/yr
Reviews and returns
What reviews say buyers love and hate about Radiator Key
We read the reviews and the return reasons for every product selling here.
“Didn't fit”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Radiator Key questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









