Downstream Injector for Pressure Washer
MaybeProducts sell for $25.61 on average, inside the sweet spot. But the top 5 products take 67% of clicks, so Downstream Injector for Pressure Washer is a Maybe.
- Flapen Score
- 57 / 100Top 43% of 8,839 Patio, Lawn & Garden niches · +1 vs the category median of 5657
- Market size
- $184K/yr163K searches / yr
- 90-day growth
- +49.0%search demand this quarter
- Competition
- 67%top-5 click share · 13 brands · 21 sellers
Flapen Score
Downstream Injector for Pressure Washer against its category
The dotted line is the Patio, Lawn & Garden average. Past it, Downstream Injector for Pressure Washer is stronger. Inside it, weaker.
Market
The Downstream Injector for Pressure Washer market on Amazon at a glance
Shoppers on Amazon United States searched for Downstream Injector for Pressure Washer 163K times last year and spent an estimated $184K. The top 5 brands take 80% of clicks. Demand peaks in Apr–May–Jun. Flapen scores it 57 out of 100, a Maybe.
01 · Demand
An estimated 4.4% of those searches ended in a purchase.
Shoppers searched for this 163K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.4% of those searches ended in a purchase. Searches in the last 90 days moved +49.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $184K a year.
- Searches, last 12 months
- 163K
- Growth, 90 days vs prior 90
- +49.0%
- Conversion, latest week
- 4.4%
- Market size, estimated
- $184Ka year
- Peak month
- June5.3× the quietest month
- Top search term
- downstream injector for pressure washer46K searches a year
02 · Price
A sale here is worth $25.61.
Listings sell for $25.61 on average, from $9.95 to $100.45. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At $25.61 that is $6K to $13K a year per listing.
- Average price
- $25.61inside the $15 to $100 sweet spot
- Price range
- $9.95–$100.45
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $6K–$13K
- Returns
- 2.9%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
94% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 4.0% of listings are out of stock. The average listing ranks #478 within Pressure Washer Parts & Accessories. It carries 318 reviews at 4.12 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 94%
- Prime listings
- 100%
- Out of stock, average day
- 4.0%
- Average rank
- #478in Pressure Washer Parts & Accessories
- Average rating
- 4.12 starsAmazon United States average 4.42 stars
- Average reviews
- 318per listing
- Listings tracked
- 17
04 · Newcomers
5 of last year's 7 launches cleared the first-year sales bar.
7 products launched here in the last 12 months. 5 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
- 7
- Successful launches
- 5Amazon's first-year sales bar
- Average brand age
- 41 months
Products
Top Downstream Injector for Pressure Washer 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 16, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
JOEJET Downstream Injector for Pressure Washer Fixed Chemical Injector Kit with 3/8 Inch Quick Connect 10 Ft Siphon Hose 3-5 GPM
- Price
- $19.05
- Rating
- 4.3/5
- Reviews
- 79
- Age
- 1y ago
Raincovo Downstream Injector for Pressure Washer Power Washer Chemical Injector Kit Soap Injector 3/8 Inch Quick Connect 4000 PSI
- Price
- $18.58
- Rating
- 3.9/5
- Reviews
- 1,055
- Age
- 5y ago
JOEJET Downstream Injector for Pressure Washer Fixed Chemical Injector Kit with 3/8 Inch Quick Connect 10 Ft Siphon Hose 2-3 GPM
- Price
- $18.93
- Rating
- 4.2/5
- Reviews
- 74
- Age
- 1y ago
Sooprinse Chemical Injector Kit for High Pressure Washer 4000 PSI Adjustable Soap Dispenser with a 1/4 Inch Black Soap Nozzle and Teflon Tape 16 Ft Siphon Hose 3/8 Inch Quick Connect
- Price
- $19.93
- Rating
- 3.8/5
- Reviews
- 1,276
- Age
- 6y ago
General Pump 3-5 Gpm Chemical Injector 100775
- Price
- $19.07
- Rating
- 4.7/5
- Reviews
- 297
- Age
- 9y ago
Trending
estimated 90-day click momentum
JOEJET Chemical Injector for Pressure Washer with Bottle Adjustable Pressure Washer Soap Injector with 1/4 Inch Quick Connect 3600 PSI 1 Liter
- Price
- $22.76
- Rating
- 4.5/5
- Reviews
- 13
- Age
- 4mo ago
Adjustable Long Range Nozzle for Pressure Washer Downstream Injection Spray Nozzle Kit 44.5 GPM External Chemical Injector w/1/4 Quick Connect 15FT Hose Shut-Off Valve & Filter 25004000 PSI.
- Price
- $100.45
- Rating
- 4.1/5
- Reviews
- 17
- Age
- 5mo ago
Tool Daily Chemical Injector for Pressure Washer Adjustable Chemical Injector Bottle with Straw Black Soap Nozzle 1/4 Quick Connect 3600 PSI
- Price
- $24.63
- Rating
- 4.3/5
- Reviews
- 20
- Age
- 6mo ago
JOEJET Downstream Injector for Pressure Washer Fixed Chemical Injector Kit with 3/8 Inch Quick Connect 10 Ft Siphon Hose 5-8 GPM
- Price
- $18.12
- Rating
- 4.2/5
- Reviews
- 26
- Age
- 1y ago
JOEJET Downstream Injector for Pressure Washer Fixed Chemical Injector Kit with 3/8 Inch Quick Connect 10 Ft Siphon Hose 2-3 GPM
- Price
- $18.93
- Rating
- 4.2/5
- Reviews
- 74
- Age
- 1y ago
Newest
by launch date
3-5 Gpm Chemical Injector 100775 for General Pump Pressure Washer Power Washer Downstream Injector Soap Injector 3/8 Quick Connect High Draw (20%) 4500 PSI
- Price
- $13.92
- Rating
- 3.4/5
- Reviews
- 8
- Age
- 3mo ago
JOEJET Chemical Injector for Pressure Washer with Bottle Adjustable Pressure Washer Soap Injector with 1/4 Inch Quick Connect 3600 PSI 1 Liter
- Price
- $22.76
- Rating
- 4.5/5
- Reviews
- 13
- Age
- 4mo ago
Adjustable Long Range Nozzle for Pressure Washer Downstream Injection Spray Nozzle Kit 44.5 GPM External Chemical Injector w/1/4 Quick Connect 15FT Hose Shut-Off Valve & Filter 25004000 PSI.
- Price
- $100.45
- Rating
- 4.1/5
- Reviews
- 17
- Age
- 5mo ago
Tool Daily Chemical Injector for Pressure Washer Adjustable Chemical Injector Bottle with Straw Black Soap Nozzle 1/4 Quick Connect 3600 PSI
- Price
- $24.63
- Rating
- 4.3/5
- Reviews
- 20
- Age
- 6mo ago
Javneo Downstream Chemical Injector Kit for Pressure Washer Fixed Soap Injector with 3/8 Quick Connect 35 GPM Flow Rate (White)
- Price
- $18.50
- Rating
- 3.5/5
- Reviews
- 27
- Age
- 8mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 67% of clicks. Leaders hold, but buyers still shop past them.
Brands
13 flat
Sellers
21
Est. top-5 brand share
80%
Top 20: 100%
Est. top-5 click share
67%
Top 20: 100%
Open market
16%
- JOEJET46%
- Raincovo15%
- Sooprinse7%
- General Pump6%
- M MINGLE5%
- RIDGE WASHER4%
- Open — no brand owns it (7 brands, 16%)
Demand
Downstream Injector for Pressure Washer search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, May, Jun · busiest ÷ quietest = 5.3×
Search terms
Top Downstream Injector for Pressure Washer search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- downstream injector for pressure washer46K/yr
- downstream injector23K/yr
- chemical injector for pressure washer19K/yr
- down stream injector pressure washer20K/yr
- pressure washer chemical injector14K/yr
- chemical injector9K/yr
- pressure washer downstream injector4K/yr
- pressure washer soap injector8K/yr
- soap injector for pressure washer7K/yr
- pressure washer injector6K/yr
Reviews and returns
What reviews say buyers love and hate about Downstream Injector for Pressure Washer
We read the reviews and the return reasons for every product selling here.
“It has never worked”
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
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Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Downstream Injector for Pressure Washer 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