---
title: "Round Up Refill — $481K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/round-up-refill"
last_updated: "2026-08-10T17:59:38.136Z"
locale: en
meta:
description: "Niche score 61/100 · $481K/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 61/100 · $481K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Round Up Refill — $481K/yr Amazon US Niche (2026) - Flapen"
---
# **round up refill**
**Worth a look**
Shows searches that convert (18.5% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 59Growth 86Conversion 99Competition 21Returns 99Price range 86Avg price 95Brand share 6Review moat 25Quality gap 57
**Conversion**
**Incredible****18.5%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$31.67**
avg listing price — sweet spot $15–$100
**Growth**
**Great****+86.3%**
90-day search growth — must beat 0% to launch
**Price range**
**Great****$6.19–$101.71**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$481K**
$481K/yr · 82K searches
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****4,069.57**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****75%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****98%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, round up refill is a $481K/yr Amazon United States market (82K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Worth a look — 61/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **round up refill market data**
- **Units sold / yr**
- **15K–20K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **$475K–$633K**
- units × avg price
- **Conversion rate**
- **18.5%**
- **Avg BSR**
- **#28**
- **Page quality**
- **0%**
- **Prime**
- **86%**
- **Sponsored**
- **93%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **103 months**
- **Avg seller age**
- **144 days**
## **Competition & brand share**
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **—flat
**Sellers**
**74**
**Top-5 brand share**
**98%**
Top 20: 100%
**Top-5 click share**
**75%**
Top 20: 100%
**Open market**
**0%**
- Roundup72% - Ortho11% - Spectracide9% - Control Solutions3% - RM432% - Spruce2% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 70 weeks — +86.3% search growth over the last 90 days.
4K3KSpike '25Prime Day '25Spike '26 seasonAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jun, Jul, Aug · busiest ÷ quietest = 5.9×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/round-up-refill/trend)
## **Top round up refill search terms**
- **round up refill**17K/yr+118.3%27.4% conv. - **weed killer refill**18K/yr+73.4%17.5% conv. - **roundup refill**11K/yr+118.5%25.3% conv. - **plant killer**10K/yr+160.6%4.9% conv. - **ground sterilizer**9K/yr+46.7%1.5% conv. - **roundup weed killer refill**5K/yr+128.4%20.5% conv. - **soil sterilizer**6K/yr+23.2%2.4% conv. - **soil sterilant**3K/yr+44.9%1.9% conv. - **plant killer outdoor**4K/yr+7.9%4.3% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/round-up-refill/search-terms)
## **Top round up refill 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%15%$72K30%$144K45%$216K60%$289K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Roundup Weed & Grass Killer Refill Use in and Around Flower Beds Trees Driveways Walkways & More 1.25 gal.**Roundup**$16.41**4.6★3,685 rev](https://www.amazon.com/dp/B0C7Y5NXQC) [2**Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer Refill Kills & Prevents for up to 1 Year 1.25 gal.**Roundup**$31.18**4.5★1,111 rev](https://www.amazon.com/dp/B0C7YS9VXK) [3**Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer Refill 1.25 gal.**Roundup**$23.16**4.6★459 rev](https://www.amazon.com/dp/B0BDST8ZZ9) [4**Spectracide Weed And Grass Killer 1.33 Gallon AccuShot Sprayer Refill**Spectracide**$11.88**4.5★3,508 rev](https://www.amazon.com/dp/B00SY3PFGY) [5**Roundup for Lawns Refill - Tough Weed Killer for Use on Northern Grasses 1.25 gal.**Roundup**$20.17**4.4★408 rev](https://www.amazon.com/dp/B09NCX2S76)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Spruce Weed Killer Refill - Versatile Weed & Grass Killer for Flower Beds Driveways & Mulch Beds - No Pour No Mix No Mess Refill - Kills Dandelions Crabgrass & More (64 Oz)**Spruce**$21.95**2,780 rev1y ago](https://www.amazon.com/dp/B0DLJ6GCQZ) [**Ortho GroundClear Year Long Vegetation Killer2 Concentrate - Kills and Prevents Weeds Up to 1 Year 1 gal.**Ortho**$28.04**3,588 rev2y ago](https://www.amazon.com/dp/B0CJL7Q92X) [**Ortho GroundClear Year Long Vegetation Killer Refill - Kills Weeds and Grasses Prevents Unwanted Weeds and Grasses for Up to 1 Year 1 gal.**Ortho**$16.66**2,556 rev2y ago](https://www.amazon.com/dp/B0CJLF5BZ9) [**Ortho GroundClear Year Long Vegetation Killer2 Concentrate Kills and Prevents Weeds Up to 1 Year 2 gal. Black**Ortho**$43.82**3,588 rev2y ago](https://www.amazon.com/dp/B0CJLD1TS8) [**Roundup Weed & Grass Killer Refill Use in and Around Flower Beds Trees Driveways Walkways & More 1.25 gal.**Roundup**$16.41**3,685 rev3y ago](https://www.amazon.com/dp/B0C7Y5NXQC)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Spruce Weed Killer Refill - Versatile Weed & Grass Killer for Flower Beds Driveways & Mulch Beds - No Pour No Mix No Mess Refill - Kills Dandelions Crabgrass & More (64 Oz)**Spruce**$21.95**4.4★**▲ 65%**](https://www.amazon.com/dp/B0DLJ6GCQZ) [**Ortho GroundClear Year Long Vegetation Killer2 Concentrate Kills and Prevents Weeds Up to 1 Year 2 gal. Black**Ortho**$43.82**4.0★**▲ 36%**](https://www.amazon.com/dp/B0CJLD1TS8) [**Spectracide Weed & Grass Killer Use On Driveways Walkways and Around Trees and Flower Beds 1 Gallon (RTU Spray)**Spectracide**$6.19**4.4★**▲ 11%**](https://www.amazon.com/dp/B007TUW4HQ) [**Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer Refill 1.25 gal.**Roundup**$23.16**4.6★**— 8%**](https://www.amazon.com/dp/B0BDST8ZZ9) [**Ortho GroundClear Weed & Grass Killer with Comfort Wand - Kills Dandelions Chickweed Crabgrass Moss & More OMRI Listed Ready-to-Use Grass and Weed Killer Spray 1 gal.**Ortho**$21.22**4.3★**— 8%**](https://www.amazon.com/dp/B07N6X547M)
**~~View all trending →~~**
## **What buyers say about round up refill**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Pest/Insect Control**21%
*“This product does work with killing the pests weeds”*
**Advertised Vs Actual Product**15%
*“AS ADVERTISED”*
**Quality-Overall**12%
*“The overall build quality is solid”*
**Value For Money**10%
*“Fair price”*
**Ease Of Use**7%
*“easy to store”*
**Plant Growth**5%
*“found it does an adequate job of killing the ones that are growing”*
**Spray/Flow**5%
*“Easy to spray”*
**Smell**4%
*“No lingering smell”*
**Safety Standards**4%
*“Safe product”*
**Strength**2%
*“Great killed right away”*
### **What buyers complain about **
**Functionality-Overall**24%
*“Dosent work”*
**Pest/Insect Control**16%
*“did not kill them”*
**Value For Money**13%
*“Too expensive”*
**Spray/Flow**8%
*“It won't spray”*
**Plant Growth**8%
*“it definitely has not kept anything from growing back”*
**Durability**4%
*“completely broke after just a few uses”*
**Quality-Overall**3%
*“Poor product”*
**Advertised Vs Actual Product**3%
*“False advertising”*
**Strength**2%
*“Very weak”*
**Leak-Proof**2%
*“Leaks Out”*
### **Top return reasons **
**Functionality-Overall**20%
**Leak-Proof**15%
**Spray/Flow**13%
**Pest/Insect Control**11%
**Value For Money**11%
**Advertised Vs Actual Product**9%
**Defective Material/Parts**6%
**Size-Overall**4%
**Plant Growth**2%
**Add-Ons/Attachments**1%
## **Common questions**
- **Is round up refill profitable to sell on Amazon United States?**
- The niche generates $481K/yr across 14 tracked products. 90-day search growth is +86.3%. Flapen's verdict: Worth a look (61/100).
- **How competitive is the round up refill niche?**
- 6 brands and 74 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 98% of demand.
- **What do buyers complain about in round up refill?**
- Top complaints mined from reviews: Functionality-Overall, Pest/Insect Control, Value For Money. The return rate is 0.3%.
- **When does demand for round up refill peak?**
- Demand peaks in Jun–Jul–Aug; the busiest month runs 5.9× the quietest.
- **What does it cost to enter the round up refill niche?**
- Listings span $6.19–$101.71; the average listing price is $31.67 (sweet spot $15–$100). The average incumbent carries 4,070 reviews — the moat a new listing must climb.
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