---
title: "Nakii Water Filter Replacement — $57K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/nakii-water-filter-replacement"
last_updated: "2026-08-08T22:55:24.540Z"
locale: en
meta:
description: "Niche score 41/100 · $57K/yr market · 10K searches/yr · $24.42 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $57K/yr market · 10K searches/yr · $24.42 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Nakii Water Filter Replacement — $57K/yr Amazon US Niche (2026) - Flapen"
---
# **nakii water filter replacement**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 14Growth 21Conversion 100Competition 4Returns 86Price range 95Avg price 95Brand share 0Review moat 47Quality gap 50
**Conversion**
**Incredible****22.6%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$24.42**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$21.06–$31.49**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****1.5%**
return rate — above 5% kills the launch gate
**Quality gap**
**Good****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****1,769.17**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-7.4%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$57K**
$57K/yr · 10K searches
**Competition**
**Bad****96%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, nakii water filter replacement is a $57K/yr Amazon United States market (10K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Aug. Verdict: Skip it — 41/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **nakii water filter replacement market data**
- **Units sold / yr**
- **2K–3K**
- avg 250–500/product
- **Revenue / yr**
- **$49K–$61K**
- units × avg price
- **Conversion rate**
- **22.6%**
- **Avg BSR**
- **#209**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **42 months**
- **Avg seller age**
- **257 days**
## **Competition & brand share**
The top 5 products capture 96% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**7**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**96%**
Top 20: 100%
**Open market**
**0%**
- Nakii40% - WTFRZERO28% - WTFTPRFR15% - FYAEWPA12% - ITEHZTO4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -7.4% search growth over the last 90 days.
450350Holiday '24Prime Day '25Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Aug · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/nakii-water-filter-replacement/trend)
## **Top nakii water filter replacement search terms**
- **nakii water filter replacement**6K/yr-11.3%19.7% conv. - **nakii water filter**3K/yr-1.6%9.9% conv. - **nokii water filter replacement**2K/yr-1.9%33.8% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/nakii-water-filter-replacement/search-terms)
## **Top nakii water filter replacement 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%$6K20%$11K30%$17K40%$23K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 6 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nakii Genuine Original NFP-100 Replacement Water Filters Official Nakii Pitcher Filter Refills 3 Pack WQA Certified NSF Grade 150-Gallon Long Life Filters Reduces Chlorine Mercury Rust & More**Nakii**$31.49**4.6★3,184 rev](https://www.amazon.com/dp/B01N3A6USI) [2**WTFRZERO Replacement Filters for All Nakii Pitcher Filtration System Fits Nakii NFP-100 Reduces Chlorine Last Up to 3 Months or 150 Gallons (Pack of 3)**WTFRZERO**$22.66**4.3★18 rev](https://www.amazon.com/dp/B0FGW8XSM8) [3**WTFTPRFR Replacement Filters for All Nakii Pitcher Filtration System Fits Nakii NFP-100 Reduces Chlorine Last Up to 3 Months or 150 Gallons (Pack of 3)**WTFTPRFR**$21.06**4.4★14 rev](https://www.amazon.com/dp/B0D9N8NYZL) [4**FYAEWPA Replacement Filter for Nakii NFP-100 Pitcher 3 Pack**FYAEWPA**$21.94**4.4★78 rev](https://www.amazon.com/dp/B0DWMSQDT8) [5**Nakii Water Filter Pitcher 1.8L - Long Lasting 150 Gallons Filtered Water Pitchers With Fast Filtration & Purification Technology - Removes Chlorine Metals For Clean Tasting Water - WQA Certified**Nakii**$27.23**4.4★7,296 rev](https://www.amazon.com/dp/B01M35N6CZ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**FYAEWPA Replacement Filter for Nakii NFP-100 Pitcher 3 Pack**FYAEWPA**$21.94**78 rev1y ago](https://www.amazon.com/dp/B0DWMSQDT8) [**WTFRZERO Replacement Filters for All Nakii Pitcher Filtration System Fits Nakii NFP-100 Reduces Chlorine Last Up to 3 Months or 150 Gallons (Pack of 3)**WTFRZERO**$22.66**18 rev2y ago](https://www.amazon.com/dp/B0FGW8XSM8) [**WTFTPRFR Replacement Filters for All Nakii Pitcher Filtration System Fits Nakii NFP-100 Reduces Chlorine Last Up to 3 Months or 150 Gallons (Pack of 3)**WTFTPRFR**$21.06**14 rev2y ago](https://www.amazon.com/dp/B0D9N8NYZL) [**3Pack NFP-100 Replacement Filter for All Nakii Pitcher Filtration System**ITEHZTO**$22.16**25 rev2y ago](https://www.amazon.com/dp/B0D8Q6Z1HV) [**Nakii Genuine Original NFP-100 Replacement Water Filters Official Nakii Pitcher Filter Refills 3 Pack WQA Certified NSF Grade 150-Gallon Long Life Filters Reduces Chlorine Mercury Rust & More**Nakii**$31.49**3,184 rev9y ago](https://www.amazon.com/dp/B01N3A6USI)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**WTFTPRFR Replacement Filters for All Nakii Pitcher Filtration System Fits Nakii NFP-100 Reduces Chlorine Last Up to 3 Months or 150 Gallons (Pack of 3)**WTFTPRFR**$21.06**4.4★**▲ 246%**](https://www.amazon.com/dp/B0D9N8NYZL) [**WTFRZERO Replacement Filters for All Nakii Pitcher Filtration System Fits Nakii NFP-100 Reduces Chlorine Last Up to 3 Months or 150 Gallons (Pack of 3)**WTFRZERO**$22.66**4.3★**▲ 20%**](https://www.amazon.com/dp/B0FGW8XSM8) [**Nakii Genuine Original NFP-100 Replacement Water Filters Official Nakii Pitcher Filter Refills 3 Pack WQA Certified NSF Grade 150-Gallon Long Life Filters Reduces Chlorine Mercury Rust & More**Nakii**$31.49**4.6★**— 10%**](https://www.amazon.com/dp/B01N3A6USI) [**3Pack NFP-100 Replacement Filter for All Nakii Pitcher Filtration System**ITEHZTO**$22.16**4.6★**▼ 12%**](https://www.amazon.com/dp/B0D8Q6Z1HV) [**Nakii Water Filter Pitcher 1.8L - Long Lasting 150 Gallons Filtered Water Pitchers With Fast Filtration & Purification Technology - Removes Chlorine Metals For Clean Tasting Water - WQA Certified**Nakii**$27.23**4.4★**▼ 24%**](https://www.amazon.com/dp/B01M35N6CZ)
**~~View all trending →~~**
## **What buyers say about nakii water filter replacement**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**46%
*“Great Water Filter”*
**Size-Overall**13%
*“It fits”*
**Value For Money**12%
*“great price”*
**Advertised Vs Actual Product**6%
*“They do the job”*
**Ease Of Use**5%
*“Easy to use”*
**Leak-Proof**4%
*“without any leakage”*
**Assembly/Installation**3%
*“Installation is easy”*
**Design-Overall**2%
*“well designed”*
**Smell**2%
*“Nasty chlorine treatment smell is GONE from tap water”*
**Durability**1%
*“solid enough for regular use”*
### **What buyers complain about **
**Filtration**58%
*“Less and less impressed with this company and its filters”*
**Leak-Proof**8%
*“These leak all around the edges”*
**Ease Of Use**4%
*“Not user friendly”*
**Value For Money**4%
*“Waste of money”*
**Instructions/User Manual/Troubleshooting**4%
*“Instructions difficult to read”*
**Quality-Overall**4%
*“Poor quality compared to the same product a few years ago”*
**Smell**2%
*“it comes out of the tap smelling like oil or river or chlorine”*
### **Top return reasons **
**Filtration**38%
**Size-Overall**31%
**Material Quality**8%
**Compatibility-Overall**4%
**Functionality-Overall**3%
**Certifications**3%
**Advertised Vs Actual Product**3%
**Ease Of Cleaning**2%
**Product Condition**2%
**Add-Ons/Attachments**1%
## **Common questions**
- **Is nakii water filter replacement profitable to sell on Amazon United States?**
- The niche generates $57K/yr across 6 tracked products. 90-day search growth is -7.4%. Flapen's verdict: Skip it (41/100).
- **How competitive is the nakii water filter replacement niche?**
- 5 brands and 7 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in nakii water filter replacement?**
- Top complaints mined from reviews: Filtration, Leak-Proof, Ease Of Use. The return rate is 1.5%.
- **When does demand for nakii water filter replacement peak?**
- Demand peaks in Jan–Aug; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the nakii water filter replacement niche?**
- Listings span $21.06–$31.49; the average listing price is $24.42 (sweet spot $15–$100). The average incumbent carries 1,769 reviews — the moat a new listing must climb.
## **Related niches in Tools & Home Improvement**
- 73 [**solar outdoor lights**](https://flapen.com/research/us/tools-home-improvement/solar-outdoor-lights)$30.2M/yr+39.8%**Launch it**- 73 [**shower lamp**](https://flapen.com/research/us/tools-home-improvement/shower-lamp)$2.8M/yr+30.2%**Launch it**- 73 [**solar flowers**](https://flapen.com/research/us/tools-home-improvement/solar-flowers)$607K/yr+52.0%**Worth a look**- 73 [**american flag lights**](https://flapen.com/research/us/tools-home-improvement/american-flag-lights)$465K/yr+736.5%**Worth a look**- 73 [**solar fairy lights**](https://flapen.com/research/us/tools-home-improvement/solar-fairy-lights)$3.5M/yr+64.6%**Launch it**- 73 [**solar watering can with cascading lights**](https://flapen.com/research/us/tools-home-improvement/solar-watering-can-with-cascading-lights)$304K/yr+124.3%**Worth a look**[**All Tools & Home Improvement niches **](https://flapen.com/research/us/tools-home-improvement)