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hayward c4030 cartridge filter

Worth a look

Shows a thin review moat (222 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 55Growth 83Conversion 88Competition 41Returns 85Price range 4Avg price 43Brand share 75Review moat 89Quality gap 24

Review moat

Great221.53

avg incumbent reviews — the moat a new listing must climb

Conversion

Great10.2%

search→purchase rate — share of searches ending in a sale

Returns

Great1.5%

return rate — above 5% kills the launch gate

Growth

Great+80.5%

90-day search growth — must beat 0% to launch

Brand share

Good60%

top-5 brand share — brands hold most of the demand

Market size

Good$379K

$379K/yr · 17K searches

Avg price

Okay$223.67

avg listing price — sweet spot $15–$100

Competition

Okay60%

top-5 click share — leaders hold, buyers still browse

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Price range

Bad$39.96–$1729.20

cheapest to priciest tracked listing — scored on the share inside $15–$100

According to Flapen's Amazon United States niche tracking, hayward c4030 cartridge filter is a $379K/yr Amazon United States market (17K searches/yr). The top 5 brands hold 60% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 61/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

hayward c4030 cartridge filter market data

Units sold / yr
2K–2K
avg 0–100/product
Revenue / yr
$336K–$447K
units × avg price
Conversion rate
10.2%
Avg BSR
#307
Page quality
0%
Prime
89%
Sponsored
89%
Out of stock
9.3%
Avg brand age
38 months
Avg seller age
171 days

Competition & brand share

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

Brands

16 falling

Sellers

32

Top-5 brand share

60%

Top 20: 100%

Top-5 click share

60%

Top 20: 100%

Open market

31%

  • Future Way15%
  • POOLNEAT12%
  • Cielvita12%
  • Grefilt12%
  • POOLPURE9%
  • Fil-fresh9%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +80.5% search growth over the last 90 days.
700500Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 5.4×

Top hayward c4030 cartridge filter search terms

  • hayward c4030 cartridge filter7K/yr
  • c4030 pool filter cartridges7K/yr
  • hayward c40303K/yr
All search terms

Top hayward c4030 cartridge 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%4%$15K8%$30K12%$45K16%$61K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

What buyers say about hayward c4030 cartridge filter

What buyers praise and complain about, mined from review topics.

What buyers love

Filtration23%

“Filters work great”

Size-Overall19%

“Fit great”

Value For Money18%

“Great Value”

Quality-Overall14%

“Good quality”

Ease Of Cleaning6%

“easy to clean”

Assembly/Installation4%

“Installation was a breeze”

Advertised Vs Actual Product3%

“As expected”

Durability2%

“sturdy — you can tell theyre built to last through multiple cleanings”

Material Quality2%

“There is no tearing or breaking down of the material at all”

Strength2%

“this configuration is indeed more robust”

What buyers complain about

Filtration29%

“not filters”

Value For Money8%

“cost 2400.00 to replace”

Quality-Overall7%

“The build quality does feel a bit cheaper compared to OEM”

Size-Overall6%

“The fit is a little loose”

Ease Of Cleaning4%

“One of my least favorite tasks is cleaning the pool filter cartridges”

Durability4%

“It simply does not hold up over time”

Charging3%

“they were too big returned then a duplicate was sent No Charge was also returned”

Pressure3%

“the pressure never really got that high”

Thickness2%

“the pleats seem to be as thick as more expensive filters ive purchased”

Assembly/Installation2%

“it won't install properly”

Top return reasons

Size-Overall65%
Filtration20%
Advertised Vs Actual Product8%
Value For Money2%
Defective Material/Parts1%
Functionality-Overall1%
Pressure1%
Quality-Overall1%
Product Condition0%
Instructions/User Manual/Troubleshooting0%

Common questions

Is hayward c4030 cartridge filter profitable to sell on Amazon United States?
The niche generates $379K/yr across 19 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is +80.5%. Flapen's verdict: Worth a look (61/100).
How competitive is the hayward c4030 cartridge filter niche?
16 brands and 32 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 60% of demand.
What do buyers complain about in hayward c4030 cartridge filter?
Top complaints mined from reviews: Filtration, Value For Money, Quality-Overall. The return rate is 1.5%.
When does demand for hayward c4030 cartridge filter peak?
Demand peaks in Apr–May–Jun–Jul; the busiest month runs 5.4× the quietest.
What does it cost to enter the hayward c4030 cartridge filter niche?
Listings span $39.96–$1729.20; the average listing price is $223.67 (sweet spot $15–$100). The average incumbent carries 222 reviews — the moat a new listing must climb.