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56

pla refill

Worth a look

Shows low returns (0.8%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 55Growth 13Conversion 40Competition 82Returns 96Price range 87Avg price 95Brand share 16Review moat 69Quality gap 52

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Avg price

Incredible$29.94

avg listing price — sweet spot $15–$100

Price range

Great$11.60–$47.17

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

Competition

Great33%

top-5 click share — an open shelf

Review moat

Good737.42

avg incumbent reviews — the moat a new listing must climb

Market size

Good$399K

$399K/yr · 415K searches

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Conversion

Okay3.2%

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

Brand share

Bad93%

top-5 brand share — brand-locked demand

Growth

Bad-23.9%

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

According to Flapen's Amazon United States niche tracking, pla refill is a $399K/yr Amazon United States market (415K searches/yr). The top 5 brands hold 93% of demand. Verdict: Worth a look — 56/100.

Data updated Aug 6, 2026 · scored weekly · How we score niches

pla refill market data

Units sold / yr
13K–15K
avg 250–500/product
Revenue / yr
$374K–$449K
units × avg price
Conversion rate
3.2%
Avg BSR
#122
Page quality
0%
Prime
100%
Sponsored
95%
Out of stock
12.4%
Avg brand age
32 months
Avg seller age
116 days

Competition & brand share

Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.

Brands

11 rising

Sellers

20

Top-5 brand share

93%

Top 20: 100%

Top-5 click share

33%

Top 20: 74%

Open market

4%

  • SUNLU58%
  • ELEGOO15%
  • OVERTURE9%
  • ANYCUBIC7%
  • MarsWork4%
  • Polymaker2%
  • Open — no brand owns it (5 brands, 4%)

Demand

Weekly Amazon search volume, last 51 weeks — -23.9% search growth over the last 90 days.
13K8KSpike '25Black Friday '25Spike '26Aug '25Oct '25Dec '25Feb '26Mar '26May '26

Top pla refill search terms

  • filament refill80K/yr
  • pla refill70K/yr
  • sunlu refill45K/yr
  • pla filament refill44K/yr
  • sunlu pla refill41K/yr
  • refill filament14K/yr
  • 3d printer filament refill15K/yr
  • black pla refill11K/yr
  • pla refill filament15K/yr
  • sunlu filament refill14K/yr
All search terms

Top pla refill 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%2%$8K4%$16K6%$24K8%$32K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about pla refill

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

What buyers love

Quality-Overall26%

“Absolute quality”

Value For Money19%

“Excellent value”

Color11%

“Color is accurate and consistent”

Material Quality8%

“I also like the fact that the spools are a sturdy material”

Compatibility-Overall5%

“Its easy to use its compatible”

Adhesion/Stickiness4%

“No issues with bed adhesion”

Advertised Vs Actual Product4%

“As advertised”

Efficiency4%

“Gets the job done”

Ease Of Use3%

“Easy to use”

Size-Overall2%

“Fits”

What buyers complain about

Print Quality17%

“Has messed up every print Ive tried with it”

Quality-Overall16%

“It is very low quality”

Adhesion/Stickiness8%

“Does not adhere at all”

Size-Overall8%

“A lot smaller then expected”

Color7%

“The color is actually a little darker”

Durability5%

“It broke two times”

Functionality-Overall5%

“it never worked”

Material Quality3%

“wasted material”

Value For Money3%

“These arent really cheaper than the Anycubic regular spools”

Strength3%

“Very brittle”

Top return reasons

Size-Overall39%
Compatibility-Overall13%
Functionality-Overall8%
Advertised Vs Actual Product7%
Color6%
Print Quality6%
Value For Money5%
Defective Material/Parts4%
Material Quality3%
Product Condition2%

Common questions

Is pla refill profitable to sell on Amazon United States?
The niche generates $399K/yr across 55 tracked products. 8 of 17 products launched in the last 360 days are still selling. 90-day search growth is -23.9%. Flapen's verdict: Worth a look (56/100).
How competitive is the pla refill niche?
11 brands and 20 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 93% of demand.
What do buyers complain about in pla refill?
Top complaints mined from reviews: Print Quality, Quality-Overall, Adhesion/Stickiness. The return rate is 0.8%.
What does it cost to enter the pla refill niche?
Listings span $11.60–$47.17; the average listing price is $29.94 (sweet spot $15–$100). The average incumbent carries 737 reviews — the moat a new listing must climb.