---
title: "Culligan Ac-30 Replacement Filters — $88K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/culligan-ac-30-replacement-filters"
last_updated: "2026-08-08T22:43:03.781Z"
locale: en
meta:
description: "Niche score 43/100 · $88K/yr market · 36K searches/yr · $42.45 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · $88K/yr market · 36K searches/yr · $42.45 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Culligan Ac-30 Replacement Filters — $88K/yr Amazon US Niche (2026) - Flapen"
---
# **culligan ac-30 replacement filters**
**Skip it**
A concentrated shelf (top 5 take 85% of clicks) — this niche doesn't clear our bar today.
Market size 22Growth 21Conversion 65Competition 13Returns 73Price range 92Avg price 95Brand share 22Review moat 72Quality gap 62
**Avg price**
**Incredible****$42.45**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$17.34–$102.74**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Good****2.1%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****625.27**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****5.8%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$88K**
$88K/yr · 36K searches
**Brand share**
**Bad****91%**
top-5 brand share — brand-locked demand
**Growth**
**Bad****-7.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****85%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, culligan ac-30 replacement filters is a $88K/yr Amazon United States market (36K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Aug–Sep–Oct–Nov–Dec. Verdict: Skip it — 43/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **culligan ac-30 replacement filters market data**
- **Units sold / yr**
- **2K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$64K–$85K**
- units × avg price
- **Conversion rate**
- **5.8%**
- **Avg BSR**
- **#1,073**
- **Page quality**
- **0%**
- **Prime**
- **91%**
- **Sponsored**
- **82%**
- **Out of stock**
- **8.3%**
- **Avg brand age**
- **91 months**
- **Avg seller age**
- **140 days**
## **Competition & brand share**
The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **▼falling
**Sellers**
**50**
**Top-5 brand share**
**91%**
Top 20: 100%
**Top-5 click share**
**85%**
Top 20: 100%
**Open market**
**6%**
- IPW Industries Inc37% - WUHUFILTRA20% - FILSADAE15% - APPLIED MEMBRANES INC.14% - Culligan6% - Smart Pack Water Filters3% - Open — no brand owns it (2 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -7.6% search growth over the last 90 days.
7K5KPrime Day '25Spike '25 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep, Oct, Nov, Dec · busiest ÷ quietest = 2.5×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/culligan-ac-30-replacement-filters/trend)
## **Top culligan ac-30 replacement filters search terms**
- **culligan aqua cleer filters**8K/yr+5.2%1.2% conv. - **culligan reverse osmosis filters**8K/yr-13.7%3.2% conv. - **culligan ac-30 replacement filters**6K/yr+6.8%8.7% conv. - **culligan ac30 replacement filters**4K/yr-34.2%10.1% conv. - **culligan ro filters replacement**3K/yr+6.3%2.7% conv. - **culligan reverse osmosis replacement filters**3K/yr-0.4%2.8% conv. - **culligan ac 30 replacement filters**4K/yr-20.9%2.6% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/culligan-ac-30-replacement-filters/search-terms)
## **Top culligan ac-30 replacement filters 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%$9K20%$18K30%$26K40%$35K1101001K10K 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**Replacement Filter Set for Culligan AquaCleer AC-30 RO System 4-Pack Cartridges & Membrane (Filters Only No Housings)**IPW Industries Inc**$44.76**4.4★783 rev](https://www.amazon.com/dp/B01G2E7WKS) [2**Culligan Compatible Full Replacement Filter Set With Membrane for AC-30 Reverse Osmosis System**WUHUFILTRA**$47.19**4.1★106 rev](https://www.amazon.com/dp/B0CQ2C5R7C) [3**FILSADAE Replacement Filter Set With Membrane for Culligan AC-30 Reverse Osmosis System**FILSADAE**$46.30**4.2★220 rev](https://www.amazon.com/dp/B09ND9NFL3) [4**Applied Membranes Inc Replacement Filter Set for Culligan AC-30 RO System - Includes RO Membrane Carbon Sediment and Post Filters**APPLIED MEMBRANES INC.**$52.20**4.3★79 rev](https://www.amazon.com/dp/B088FZS47T) [5**Culligan RC-EZ-4 Premium Water Filtration Replacement Cartridge for Under-Sink Refrigerator & RV Systems - EZ Change Water Filter System (500 Gallon Life)**Culligan**$45.53**4.7★2,103 rev](https://www.amazon.com/dp/B000NNPVVW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Culligan RC 1 EZ-Change Basic Water Filtration Replacement Cartridge 3 000 Gallons Multi**Culligan**$17.34**2,018 rev1y ago](https://www.amazon.com/dp/B000THCYT4) [**Compatible with Culligan AC-30 Reverse Osmosis Replacement Pre Sediment/Carbon Block Filter Set**WUHUFILTRA**$19.67**10 rev2y ago](https://www.amazon.com/dp/B0D1QJTSBH) [**Culligan AC-30 Replacement Filters Kit with RO Membrane Compatible with Culligan AC-30 4-Stage Reverse Osmosis System AC-30 Filter Replacement Set Sediment Carbon & Post Filter**ESP Water Products**$102.74**1 rev2y ago](https://www.amazon.com/dp/B0CTD1YBVH) [**Culligan Compatible Full Replacement Filter Set With Membrane for AC-30 Reverse Osmosis System**WUHUFILTRA**$47.19**106 rev2y ago](https://www.amazon.com/dp/B0CQ2C5R7C) [**Culligan Compatible AC 30 Reverse Osmosis(RO) System Replacement Pre-Filter Set With Membrane**WUHUFILTRA**$41.83**34 rev2y ago](https://www.amazon.com/dp/B0CQ2BW41K)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Culligan RC-EZ-4 Premium Water Filtration Replacement Cartridge for Under-Sink Refrigerator & RV Systems - EZ Change Water Filter System (500 Gallon Life)**Culligan**$45.53**4.7★**▲ 165%**](https://www.amazon.com/dp/B000NNPVVW) [**AQUA CREST RC EZ 1 Water Filter Replacement for Culligan RC-EZ-1 2 Pack**AQUA CREST**$26.64**4.6★**▲ 32%**](https://www.amazon.com/dp/B01L03D16A) [**Compatible with Culligan AC-30 Reverse Osmosis Replacement Pre Sediment/Carbon Block Filter Set**WUHUFILTRA**$19.67**3.6★**▲ 20%**](https://www.amazon.com/dp/B0D1QJTSBH) [**Culligan AC-30 Replacement Filters Kit with RO Membrane Compatible with Culligan AC-30 4-Stage Reverse Osmosis System AC-30 Filter Replacement Set Sediment Carbon & Post Filter**ESP Water Products**$102.74**5.0★**▲ 16%**](https://www.amazon.com/dp/B0CTD1YBVH) [**Applied Membranes Inc Replacement Filter Set for Culligan AC-30 RO System - Includes RO Membrane Carbon Sediment and Post Filters**APPLIED MEMBRANES INC.**$52.20**4.3★**▲ 10%**](https://www.amazon.com/dp/B088FZS47T)
**~~View all trending →~~**
## **What buyers say about culligan ac-30 replacement filters**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**25%
*“Great filter at a good price”*
**Quality-Overall**13%
*“No complaints as did the job”*
**Value For Money**12%
*“Good price”*
**Size-Overall**9%
*“Fit well”*
**Advertised Vs Actual Product**8%
*“Seems working what it should be doing”*
**Efficiency**7%
*“Works great”*
**Assembly/Installation**6%
*“Easy to install”*
**Ease Of Use**5%
*“Excellent easy-to-use”*
**Maintenance And Repair**1%
*“Luckily my fiance knows how to replace them so we dont have to go through Culligan for maintenance”*
**Adjustability/Rotatability/Reclining**1%
*“easy to change”*
### **What buyers complain about **
**Filtration**30%
*“Guess its just a bunch of BS for a filter”*
**Size-Overall**16%
*“Small filter did not fit”*
**Quality-Overall**9%
*“Zero quality control”*
**Advertised Vs Actual Product**7%
*“Not at all what they are advertised”*
**Durability**6%
*“Broken before pulling them out of the bag”*
**Compatibility-Overall**6%
*“it does NOT fit the Dupont three-stage filter system”*
**Value For Money**6%
*“Not inexpensive,”*
**Leak-Proof**3%
*“6 leaks”*
**Adhesion/Stickiness**2%
*“The glue holding the inlet caps didn't hold”*
### **Top return reasons **
**Size-Overall**31%
**Compatibility-Overall**27%
**Filtration**23%
**Advertised Vs Actual Product**6%
**Leak-Proof**3%
**Defective Material/Parts**2%
**Connectivity-Overall**2%
**Functionality-Overall**1%
**Product Condition**1%
**Maintenance And Repair**1%
## **Common questions**
- **Is culligan ac-30 replacement filters profitable to sell on Amazon United States?**
- The niche generates $88K/yr across 11 tracked products. 90-day search growth is -7.6%. Flapen's verdict: Skip it (43/100).
- **How competitive is the culligan ac-30 replacement filters niche?**
- 8 brands and 50 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 91% of demand.
- **What do buyers complain about in culligan ac-30 replacement filters?**
- Top complaints mined from reviews: Filtration, Size-Overall, Quality-Overall. The return rate is 2.1%.
- **When does demand for culligan ac-30 replacement filters peak?**
- Demand peaks in Aug–Sep–Oct–Nov–Dec; the busiest month runs 2.5× the quietest.
- **What does it cost to enter the culligan ac-30 replacement filters niche?**
- Listings span $17.34–$102.74; the average listing price is $42.45 (sweet spot $15–$100). The average incumbent carries 625 reviews — the moat a new listing must climb.
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