---
title: "Greenworks Weed Wacker String — $458K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/greenworks-weed-wacker-string"
last_updated: "2026-08-10T20:45:36.725Z"
locale: en
meta:
description: "Niche score 64/100 · $458K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 64/100 · $458K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Greenworks Weed Wacker String — $458K/yr Amazon US Niche (2026) - Flapen"
---
# **greenworks weed wacker string**
**Worth a look**
Shows demand growing +391.0% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 58Growth 100Conversion 96Competition 15Returns 57Price range 87Avg price 95Brand share 10Review moat 67Quality gap 90
**Growth**
**Incredible****+391.0%**
90-day search growth — must beat 0% to launch
**Conversion**
**Incredible****13.6%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$29.22**
avg listing price — sweet spot $15–$100
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Price range**
**Great****$9.83–$104.27**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****802.33**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Good****$458K**
$458K/yr · 115K searches
**Returns**
**Good****2.7%**
return rate — above 5% kills the launch gate
**Competition**
**Bad****82%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****96%**
top-5 brand share — brand-locked demand
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)")
According to Flapen's Amazon United States niche tracking, greenworks weed wacker string is a $458K/yr Amazon United States market (115K searches/yr). The top 5 brands hold 96% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 64/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **greenworks weed wacker string market data**
- **Units sold / yr**
- **15K–20K**
- avg 500–750/product
- **Revenue / yr**
- **$438K–$584K**
- units × avg price
- **Conversion rate**
- **13.6%**
- **Avg BSR**
- **#397**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **92%**
- **Out of stock**
- **7.3%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **201 days**
## **Competition & brand share**
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▼falling
**Sellers**
**19**
**Top-5 brand share**
**96%**
Top 20: 100%
**Top-5 click share**
**82%**
Top 20: 100%
**Open market**
**2%**
- THTEN48% - Greenworks24% - OIXXAF11% - Cilivo7% - Kudoosen6% - VineHii2% - Open — no brand owns it (1 brand, 2%)
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +391.0% search growth over the last 90 days.
45K35KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 58.6×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/greenworks-weed-wacker-string/trend)
## **Top greenworks weed wacker string search terms**
- **greenworks weed wacker string**31K/yr+494.1%0.7% conv. - **greenworks trimmer string**25K/yr+284.6%0.5% conv. - **greenworks string trimmer refill**12K/yr+240.3%0.4% conv. - **green works weed wacker string**9K/yr+488.1%0.6% conv. - **greenworks trimmer line**8K/yr+542.8%0.8% conv. - **greenworks trimmer string replacement**6K/yr+905.1%0.8% conv. - **greenworks weed eater string**7K/yr+191.8%0.2% conv. - **greenworks replacement spool**5K/yr+357.2%0.8% conv. - **greenworks string trimmer line**2K/yr+427.9%0.8% conv. - **greenworks edger string**3K/yr+931.7%1.1% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/greenworks-weed-wacker-string/search-terms)
## **Top greenworks weed wacker string 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%10%$46K20%$92K30%$137K40%$183K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**THTEN 0.080 String Trimmer Line Compatible with Greenworks 80V 60V 48V 40V 24V GST80320 STB301 ST80L00 ST60B212 ST60B02 BL60L00 STE405 21142 String Trimmer 157 Ft Pre-Cut Twisted Line 9 Pack**THTEN**$13.73**4.5★185 rev](https://www.amazon.com/dp/B0C6TMN5ZC) [2**Greenworks 0.080 80V Front Mount String Trimmer Replacement Spool**Greenworks**$12.25**4.4★3,094 rev](https://www.amazon.com/dp/B01ID881S8) [3**THTEN 29252 29092 Weed Eater Spools Replacement for Greenworks 21302 21332 21342 20V 24V 40V 16ft 0.065Single Line String Trimmer with 3411546A-6 Cap Covers Parts Auto-Feed String Edger 6+1**THTEN**$12.50**4.3★808 rev](https://www.amazon.com/dp/B07PRF1LW1) [4**JOYCOLY Weed Eater String Replacement Spool Compatible with Greenworks 21332 21342 24V 40V 80V Cordless String Trimmer 0.065 Inch Single Line Auto-Feed Spool Model 29252 (6 Spool 1 Cap) Blue**OIXXAF**$9.83**4.3★524 rev](https://www.amazon.com/dp/B092T8W1M3) [5**Kudoosen 2900719 Weed Wacker Spools for Greenworks 20ft 0.065 2101602 2101602A STBA40B210 2101602 ST40B410 Replacement Trimmer Spools 10-Line Spool + 2Cap**Kudoosen**$13.45**4.4★195 rev](https://www.amazon.com/dp/B0CSPR61RW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SB00L00 Spool Replacement Bump Trimmer Head 2926507 Compatible with Greenworks ST40L00 ST60V ST60L210 ST60L00 ST60B00 80V ST80L200 Front Mount String Trimmer Weed Wack Pre-Wound 0.080 17Ft Dual Line**Cilivo**$25.44**41 rev1y ago](https://www.amazon.com/dp/B0F8PBJ65M) [**Replacement Spool for Greenworks 0.065 Single Line Auto-Feed String Trimmer Spools + Replacement Spool Cover Cap Compatible with Greenworks 24V12 and 40V13 String Trimmer -7Pack(6 Spool + 1Cap)**Cilivo**$19.38**78 rev1y ago](https://www.amazon.com/dp/B0F5BHLXKJ) [**VineHii Compatible with Greenworks 24V12 and 40V13 String Trimmer Replacement Spool for Greenworks 0.065 Single Line Auto-Feed String Trimmer Spool + Cover Cap (6 Spools 1 Cap)**VineHii**$18.77**38 rev1y ago](https://www.amazon.com/dp/B0F5BHZF1G) [**Aporozona 6PC SB00L00 Dual Trimmer Line Replacement Spool for Greenworks STBA80L210 ST80L210 ST60L2510 ST80L00 ST60L00 ST60L210 ST60B00 ST60B211 ST60B212 String Trimmer**Aporozona**$19.43**59 rev1y ago](https://www.amazon.com/dp/B0DSJB6FPK) [**Kudoosen 2900719 Weed Wacker Spools for Greenworks 20ft 0.065 2101602 2101602A STBA40B210 2101602 ST40B410 Replacement Trimmer Spools 10-Line Spool + 2Cap**Kudoosen**$13.45**195 rev2y ago](https://www.amazon.com/dp/B0CSPR61RW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**THTEN 29252 29092 Weed Eater Spools Replacement for Greenworks 21302 21332 21342 20V 24V 40V 16ft 0.065Single Line String Trimmer with 3411546A-6 Cap Covers Parts Auto-Feed String Edger 6+1**THTEN**$12.50**4.3★**▲ 55%**](https://www.amazon.com/dp/B07PRF1LW1) [**Kudoosen 2900719 Weed Wacker Spools for Greenworks 20ft 0.065 2101602 2101602A STBA40B210 2101602 ST40B410 Replacement Trimmer Spools 10-Line Spool + 2Cap**Kudoosen**$13.45**4.4★**▲ 53%**](https://www.amazon.com/dp/B0CSPR61RW) [**THTEN 0.080 String Trimmer Line Compatible with Greenworks 80V 60V 48V 40V 24V GST80320 STB301 ST80L00 ST60B212 ST60B02 BL60L00 STE405 21142 String Trimmer 157 Ft Pre-Cut Twisted Line 9 Pack**THTEN**$13.73**4.5★**▲ 34%**](https://www.amazon.com/dp/B0C6TMN5ZC) [**VineHii Compatible with Greenworks 24V12 and 40V13 String Trimmer Replacement Spool for Greenworks 0.065 Single Line Auto-Feed String Trimmer Spool + Cover Cap (6 Spools 1 Cap)**VineHii**$18.77**4.3★**▲ 17%**](https://www.amazon.com/dp/B0F5BHZF1G) [**Greenworks 24V Cordless String Trimmer/Edger (Gen 2) 12 Cutting Width Ultra-Light 6 lbs Design with 2.0Ah Battery & Charger Included**Greenworks**$85.22**3.9★**— 2%**](https://www.amazon.com/dp/B0BF9YFL2X)
**~~View all trending →~~**
## **What buyers say about greenworks weed wacker string**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**16%
*“Easy to use”*
**Size-Overall**16%
*“It fits”*
**Cutting/Trimming**9%
*“Awesome string trimmer”*
**Weight Light**8%
*“the unit was lightweight”*
**Quality-Overall**6%
*“the cut quality is great”*
**Battery Life**6%
*“the battery life is good”*
**Strength**5%
*“It's powerful at cutting weeds”*
**Value For Money**5%
*“Great value for the money”*
**Durability**4%
*“so it does not break that often”*
**Advertised Vs Actual Product**3%
*“Accurate description fits well”*
### **What buyers complain about **
**Durability**17%
*“it just didn't last”*
**Size-Overall**12%
*“The blade holder doesnt fit”*
**Quality-Overall**12%
*“Horrible quality”*
**Battery Life**10%
*“Bad battery”*
**Ease Of Use**7%
*“difficult to remove the cap”*
**Functionality-Overall**5%
*“most likely the trimmers autofeed itself is not working”*
**Cutting/Trimming**4%
*“Worst trimmer in the history of trimmers”*
**Weight Heavy**4%
*“Little heavy than i thought”*
**Charging**3%
*“charger doesn't work”*
**Instructions/User Manual/Troubleshooting**2%
*“The edge guide seems pretty much worthless”*
### **Top return reasons **
**Size-Overall**48%
**Advertised Vs Actual Product**11%
**Functionality-Overall**7%
**Defective Material/Parts**5%
**Weight Heavy**4%
**Value For Money**4%
**Battery Life**3%
**Mechanism Issues**2%
**Cutting/Trimming**2%
**Add-Ons/Attachments**2%
## **Common questions**
- **Is greenworks weed wacker string profitable to sell on Amazon United States?**
- The niche generates $458K/yr across 12 tracked products. 90-day search growth is +391.0%. Flapen's verdict: Worth a look (64/100).
- **How competitive is the greenworks weed wacker string niche?**
- 7 brands and 19 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 96% of demand.
- **What do buyers complain about in greenworks weed wacker string?**
- Top complaints mined from reviews: Durability, Size-Overall, Quality-Overall. The return rate is 2.7%.
- **When does demand for greenworks weed wacker string peak?**
- Demand peaks in May–Jun–Jul–Aug; the busiest month runs 58.6× the quietest.
- **What does it cost to enter the greenworks weed wacker string niche?**
- Listings span $9.83–$104.27; the average listing price is $29.22 (sweet spot $15–$100). The average incumbent carries 802 reviews — the moat a new listing must climb.
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