---
title: "90304 Shop Vac Filter — $230K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/90304-shop-vac-filter"
last_updated: "2026-08-08T15:53:16.836Z"
locale: en
meta:
description: "Niche score 52/100 · $230K/yr market · 65K searches/yr · $18.75 avg price. Strong incumbent ratings (4.7★) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $230K/yr market · 65K searches/yr · $18.75 avg price. Strong incumbent ratings (4.7★) keeps it on the watch list. Data updated Jul 2026."
"og:title": "90304 Shop Vac Filter — $230K/yr Amazon US Niche (2026) - Flapen"
---
# **90304 shop vac filter**
**Worth a look**
Shows searches that convert (19.0% search→purchase), but strong incumbent ratings (4.7★) keeps it on the watch list.
Market size 44Growth 25Conversion 99Competition 47Returns 69Price range 65Avg price 84Brand share 59Review moat 56Quality gap 21
**Conversion**
**Incredible****19.0%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$18.75**
avg listing price — sweet spot $15–$100
**Returns**
**Good****2.2%**
return rate — above 5% kills the launch gate
**Price range**
**Good****$9.75–$24.96**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****70%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Good****1,270.18**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$230K**
$230K/yr · 65K searches
**Growth**
**Okay****+0.3%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, 90304 shop vac filter is a $230K/yr Amazon United States market (65K searches/yr). The top 5 brands hold 70% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **90304 shop vac filter market data**
- **Units sold / yr**
- **10K–13K**
- avg 250–500/product
- **Revenue / yr**
- **$188K–$234K**
- units × avg price
- **Conversion rate**
- **19.0%**
- **Avg BSR**
- **#79**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **95%**
- **Out of stock**
- **19.4%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **199 days**
## **Competition & brand share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▲rising
**Sellers**
**26**
**Top-5 brand share**
**70%**
Top 20: 100%
**Top-5 click share**
**57%**
Top 20: 98%
**Open market**
**25%**
- ATXKXE29% - isinlive14% - Shop-Vac10% - Cabiclean10% - Extolife7% - SwellV5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +0.3% search growth over the last 90 days.
1K750Spike '24Prime Day '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/90304-shop-vac-filter/trend)
## **Top 90304 shop vac filter search terms**
- **90304 shop vac filter**21K/yr+2.9%16.2% conv. - **shop vac filter 90304**11K/yr+11.6%17.5% conv. - **90304**4K/yr+26.1%11.8% conv. - **shopvac filter 90304**5K/yr-14.4%15.7% conv. - **shop vac 90304**5K/yr-3.1%16.6% conv. - **shop vac cartridge filter 90304**3K/yr+20.4%15.0% conv. - **shop vac filters 90304**3K/yr+1.2%17.3% conv. - **90304 filter**4K/yr-17.8%12.7% conv. - **90340 shop vac filter**3K/yr-7.6%6.9% conv. - **90350 shop vac filter**3K/yr+0.9%12.0% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/90304-shop-vac-filter/search-terms)
## **Top 90304 shop vac filter 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%5%$12K10%$23K15%$35K20%$46K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 22 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**90304 Replacement Filter 90107 dry filter 90585 Foam Sleeve Compatible with shopvac filter 90304 90350 90333 90585 Fits Most 5 Gallon and Above Wet Dry Vacuum Cleaner (2+2+4+2+2+1)**ATXKXE**$19.03**4.5★205 rev](https://www.amazon.com/dp/B0G34YF8VL) [2**90304 Replacement Filter Kit Compatible with Shop Vac Cartridge Filter 90350 90304 90333 90585 Fits Most 5 Gallon and above Wet Dry Vacuum Cleaner (2+2+4+1)**isinlive**$20.44**4.6★781 rev](https://www.amazon.com/dp/B0D794WHQM) [3**90304 Replacement Filter 90585 Foam Sleeve Compatible with shopvac filter 90304 90350 90333 90585 Fits Most 5 Gallon and Above Wet Dry Vacuum Cleaner (1 Filters+1 Lid+2 Foam Sleeve Filter+1 Brush)**ATXKXE**$15.05**4.5★88 rev](https://www.amazon.com/dp/B0G351VSD5) [4**90304 Replacement Filter Fit for Shop-Vac 90304 90350 90333 Replacement**Cabiclean**$19.79**4.6★1,845 rev](https://www.amazon.com/dp/B08CXXV854) [5**Extolife Replacement Filter Compatible with Shop-Vac 90350 90304 90333 Replacement fits most Wet/Dry Vacuum 5 Gallon and above (1)**Extolife**$14.31**4.7★13,100 rev](https://www.amazon.com/dp/B07WP1H6NM)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**90304 Replacement Filter 90585 Foam Sleeve Kit Fit for shopvac Cartridge Filter 90304 90333 90350 90585 Replacement for Most Wet and Dry Vacuum Cleaners 5 Gallon and Above (2+2+4+1)**Netezza**$19.23**42 rev4mo ago](https://www.amazon.com/dp/B0GV2FF4RY) [**90304 Replacement Filter 90107 dry filter 90585 Foam Sleeve Compatible with shopvac filter 90304 90350 90333 90585 Fits Most 5 Gallon and Above Wet Dry Vacuum Cleaner (1+1+3+3+6+1)**ATXKXE**$18.61**20 rev4mo ago](https://www.amazon.com/dp/B0GTZP8DXH) [**90304 Replacement Filter 90107 dry filter 90585 Foam Sleeve Compatible with shopvac filter 90304 90350 90333 90585 Fits Most 5 Gallon and Above Wet Dry Vacuum Cleaner (2+2+4+2+2+1)**ATXKXE**$19.03**205 rev7mo ago](https://www.amazon.com/dp/B0G34YF8VL) [**90304 Replacement Filter 90585 Foam Sleeve Compatible with shopvac filter 90304 90350 90333 90585 Fits Most 5 Gallon and Above Wet Dry Vacuum Cleaner (1 Filters+1 Lid+2 Foam Sleeve Filter+1 Brush)**ATXKXE**$15.05**88 rev8mo ago](https://www.amazon.com/dp/B0G351VSD5) [**QUIENKITCH 2 Pack 90304 Replacement Filter Kit for Shop Vac 5 Gal**QUIENKITCH**$19.91**260 rev1y ago](https://www.amazon.com/dp/B0DHKLCGNC)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**90304 Replacement Filter 90585 Foam Sleeve Kit Fit for shopvac Cartridge Filter 90304 90333 90350 90585 Replacement for Most Wet and Dry Vacuum Cleaners 5 Gallon and Above (2+2+4+1)**Netezza**$19.23**4.8★**▲ 198%**](https://www.amazon.com/dp/B0GV2FF4RY) [**90304 Replacement Filter 90107 dry filter 90585 Foam Sleeve Compatible with shopvac filter 90304 90350 90333 90585 Fits Most 5 Gallon and Above Wet Dry Vacuum Cleaner (1+1+3+3+6+1)**ATXKXE**$18.61**4.9★**▲ 197%**](https://www.amazon.com/dp/B0GTZP8DXH) [**1 Pack Replacement 90304 Filter Compatible with shopvac 90304 90350 90333 903-04-00 9030400 5 Gallon Up Wet/Dry Vacuum Cleaners Filters**FilledwithLove**$13.90**4.8★**▲ 139%**](https://www.amazon.com/dp/B0C542757P) [**GIB 90304 Filter and Replacement Bags for Shop Vac Wet Dry Vac 5-8 Gallon**GIB cleaningtool**$24.96**4.4★**▲ 126%**](https://www.amazon.com/dp/B0C5XF2TD7) [**90304 Vacuum Filter Replacement Filter for Shop-Vac 90304 90350 90333 90585**SwellV**$20.86**4.8★**▲ 84%**](https://www.amazon.com/dp/B0DF2JNNXT)
**~~View all trending →~~**
## **What buyers say about 90304 shop vac filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**36%
*“Fit like a charm”*
**Filtration**16%
*“The filters work well”*
**Value For Money**13%
*“Great Value”*
**Quality-Overall**10%
*“Good quality, easy to put in”*
**Advertised Vs Actual Product**10%
*“As described”*
**Efficiency**2%
*“Works Great”*
**Compatibility-Overall**1%
*“Compatibility”*
**Ease Of Cleaning**1%
*“cleans up easily”*
**Durability**1%
*“the filter itself feels durable”*
**Assembly/Installation**1%
*“Easy to install”*
### **What buyers complain about **
**Size-Overall**34%
*“Did not fit”*
**Filtration**17%
*“Very poor filter”*
**Quality-Overall**5%
*“Not high quality”*
**Advertised Vs Actual Product**3%
*“Check measurements, not description”*
**Compatibility-Overall**3%
*“This does not fit my Genie shop vac”*
**Value For Money**2%
*“A waste of money”*
**Ease Of Use**2%
*“My old one was so filthy that just trying to get it out was a feat”*
**Durability**2%
*“ripped all the way trying to put them on”*
**Strength**2%
*“flimsy”*
**Functionality-Overall**2%
*“do not work”*
### **Top return reasons **
**Size-Overall**77%
**Compatibility-Overall**12%
**Filtration**7%
**Advertised Vs Actual Product**1%
**Defective Material/Parts**1%
**Value For Money**1%
**Functionality-Overall**1%
**Connectivity-Overall**0%
**Suction**0%
**Product Condition**0%
## **Common questions**
- **Is 90304 shop vac filter profitable to sell on Amazon United States?**
- The niche generates $230K/yr across 22 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is +0.3%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the 90304 shop vac filter niche?**
- 16 brands and 26 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 70% of demand.
- **What do buyers complain about in 90304 shop vac filter?**
- Top complaints mined from reviews: Size-Overall, Filtration, Quality-Overall. The return rate is 2.2%.
- **When does demand for 90304 shop vac filter peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the 90304 shop vac filter niche?**
- Listings span $9.75–$24.96; the average listing price is $18.75 (sweet spot $15–$100). The average incumbent carries 1,270 reviews — the moat a new listing must climb.
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