---
title: "Rodi — $59K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/rodi"
last_updated: "2026-07-21T17:36:24.894Z"
locale: en
meta:
description: "Niche score 27/100 · $59K/yr market · 33K searches/yr · $126.45 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 27/100 · $59K/yr market · 33K searches/yr · $126.45 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Rodi — $59K/yr Amazon US Niche (2026) - Flapen"
---
# **rodi**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 15Growth 8Conversion 18Competition 14Returns 41Price range 31Avg price 66Brand share 0Review moat 68Quality gap 72
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****760.27**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Good****$126.45**
avg listing price — sweet spot $15–$100
**Returns**
**Okay****4.1%**
return rate — above 6% kills the launch gate
**Price range**
**Okay****$46.91–$219.86**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Bad****1.4%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$59K**
$59K/yr · 33K searches
**Competition**
**Bad****83%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-34.5%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, rodi is a $59K/yr Amazon United States market (33K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Sep–Dec. Verdict: Skip it — 27/100.
Data updated Jul 17, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **rodi market data**
- **Units sold / yr**
- **750–1K**
- avg 100–250/product
- **Revenue / yr**
- **$95K–$126K**
- units × avg price
- **Launch success**
- **—**
- 1 of 1 new (360d)
- **Conversion rate**
- **1.4%**
- **Avg BSR**
- **#405**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **6.6%**
- **Avg brand age**
- **77 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**11**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**83%**
Top 20: 100%
**Open market**
**0%**
- Aquatic Life69% - Geekpure10% - iSpring9% - Max Water8% - Filterelated4% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -34.5% search growth over the last 90 days.
3K2KHoliday '24Spike '25Prime Day '25Holiday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb, Sep, Dec · busiest ÷ quietest = 3.5×
[**Open Trend **](https://flapen.com/research/us/pet-supplies/rodi/trend)
## **Top rodi search terms**
- **rodi filter**18K/yr-24.4%1.7% conv. - **ro di system for aquarium**7K/yr-39.9%2.2% conv. - **ro/di water filter system for aquarium**6K/yr-67.0%1.8% conv. - **rodi system for saltwater aquarium**2K/yr+25.8%2.2% conv. [**All search terms **](https://flapen.com/research/us/pet-supplies/rodi/search-terms)
## **Top rodi 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%$9K30%$18K45%$27K60%$36K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Aquatic Life RO Buddie 4-Stage Aquarium Water Filter System Reverse Osmosis RO/DI Filtration Unit for Fish Tank Fountains and More 50 GPD (Gallons Per Day)**Aquatic Life**$68.85**4.5★5,036 rev](https://www.amazon.com/dp/B00204CQF6) [2**Aquatic Life Twist-in 4-Stage RO/DI Aquarium Water Filter System Reverse Osmosis Filtration with Sediment Carbon Membrane & DI Resin 75 GPD**Aquatic Life**$97.47**4.5★1,082 rev](https://www.amazon.com/dp/B083P4HZPD) [3**Geekpure 4 Stage Portable Aquarium Reverse Osmosis RO Drinking Water Filtration System 100 GPD - with DI Filter TDS Close to 0 ppm**Geekpure**$57.75**4.2★562 rev](https://www.amazon.com/dp/B0897G8QDV) [4**iSpring RCC1DP Tankless RO/DI System 5 Stage De-ionization Reverse Osmosis Water Filter High Performing 150 GPD Tankless RO Water System for Aquarium with DI Water Filter & Pump**iSpring**$219.86**4.3★100 rev](https://www.amazon.com/dp/B0CP7NMVCJ) [5**Aquatic Life 4-Stage Reverse Osmosis Deionization Water Filter System RO/DI Filtration Unit with Carbon Plus Cartridge 100 GPD**Aquatic Life**$151.98**4.3★259 rev](https://www.amazon.com/dp/B09MTS1BCM)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**4-Stage Aquarium Reverse Osmosis System with Flushing Valve Portable RO+DI deionized Water Filtration Colour Changing DI Filter 100 GPD-TDS Close to 0 ppm**Filterelated**$60.64**31 rev7mo ago](https://www.amazon.com/dp/B0G8DY22ZC) [**iSpring RCC1DP Tankless RO/DI System 5 Stage De-ionization Reverse Osmosis Water Filter High Performing 150 GPD Tankless RO Water System for Aquarium with DI Water Filter & Pump**iSpring**$219.86**100 rev2y ago](https://www.amazon.com/dp/B0CP7NMVCJ) [**iSpring RCC1D Tankless RO/DI System 5 Stage De-ionization Reverse Osmosis Water Filter System 150 GPD Tankless RO Water Filter System for Aquarium with DI Water Filter**iSpring**$170.45**36 rev2y ago](https://www.amazon.com/dp/B0CP7QSX9Y) [**Aquatic Life 4-Stage Reverse Osmosis Deionization Water Filter System RO/DI Filtration Unit with Carbon Plus Cartridge 100 GPD**Aquatic Life**$151.98**259 rev4y ago](https://www.amazon.com/dp/B09MTS1BCM) [**Geekpure 4 Stage Portable Aquarium Reverse Osmosis RO Drinking Water Filtration System 100 GPD - with DI Filter TDS Close to 0 ppm**Geekpure**$57.75**562 rev6y ago](https://www.amazon.com/dp/B0897G8QDV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**4-Stage Aquarium Reverse Osmosis System with Flushing Valve Portable RO+DI deionized Water Filtration Colour Changing DI Filter 100 GPD-TDS Close to 0 ppm**Filterelated**$60.64**4.1★**▲ 326%**](https://www.amazon.com/dp/B0G8DY22ZC) [**Max Water 6 Stage Aquarium System/RO Water Filtration System with Deionization Filter RO Water Purifier 100 GPD Hydroponics RODI System (Clear Housing System with TDS Meter)**Max Water**$187.53**4.3★**▲ 73%**](https://www.amazon.com/dp/B07C4SPYLH) [**Max Water 6 Stage Aquarium System/RO Water Filtration System with Deionization Filter RO Water Purifier 100 GPD Hydroponics RODI System (Clear)**Max Water**$173.78**4.1★**▲ 24%**](https://www.amazon.com/dp/B07SHP82Y4) [**Geekpure 3 STAGE Portable Aquarium Reverse Osmosis RO Drinking Water Filter System-100 GPD**Geekpure**$46.91**4.3★**▲ 21%**](https://www.amazon.com/dp/B07H2TSNZM) [**iSpring RCC1D Tankless RO/DI System 5 Stage De-ionization Reverse Osmosis Water Filter System 150 GPD Tankless RO Water Filter System for Aquarium with DI Water Filter**iSpring**$170.45**4.6★**▲ 14%**](https://www.amazon.com/dp/B0CP7QSX9Y)
**~~View all trending →~~**
## **What buyers say about rodi**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**16%
*“Great value”*
**Filtration**13%
*“Excellent Water Filtration System”*
**Quality-Overall**12%
*“Great Product”*
**Ease Of Use**5%
*“Easy to use”*
**Advertised Vs Actual Product**5%
*“Exactly what I wanted”*
**Assembly/Installation**5%
*“The installation was straightforward”*
**Efficiency**5%
*“Does the job perfectly”*
**Water Flow**4%
*“Easy to use with water hose”*
**Ease Of Cleaning**4%
*“As long as its consistent giving you clean water”*
**Leak-Proof**4%
*“No leaks, easy to set up, works great for what I need”*
### **What buyers complain about **
**Leak-Proof**19%
*“Leaks like crazy”*
**Filtration**11%
*“I'm thinking maybe filters bad maybe”*
**Value For Money**9%
*“This is an expensive product”*
**Assembly/Installation**7%
*“system is hard to setup”*
**Quality-Overall**6%
*“Not well made”*
**Instructions/User Manual/Troubleshooting**5%
*“The instructions suck”*
**Spray/Flow**3%
*“the flow is not there at all”*
**Ease Of Use**3%
*“it's kind of a mess to do”*
**Size-Overall**3%
*“Wrong sized fittings”*
**Natural Resource Wastage**3%
*“wastes a ton of water”*
### **Top return reasons **
**Filtration**21%
**Leak-Proof**13%
**Size-Overall**10%
**Functionality-Overall**10%
**Defective Material/Parts**7%
**Compatibility-Overall**7%
**Advertised Vs Actual Product**6%
**Assembly/Installation**5%
**Value For Money**3%
**Product Condition**3%
## **Common questions**
- **Is rodi profitable to sell on Amazon United States?**
- The niche generates $59K/yr across 11 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -34.5%. Flapen's verdict: Skip it (27/100).
- **How competitive is the rodi niche?**
- 5 brands and 11 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in rodi?**
- Top complaints mined from reviews: Leak-Proof, Filtration, Value For Money. The return rate is 4.1%.
- **When does demand for rodi peak?**
- Demand peaks in Jan–Feb–Sep–Dec; the busiest month runs 3.5× the quietest.
- **What does it cost to enter the rodi niche?**
- Listings span $46.91–$219.86; the average listing price is $126.45 (sweet spot $15–$100). The average incumbent carries 760 reviews — the moat a new listing must climb.
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