---
title: "Pond Liner — $2.5M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/pond-liner"
last_updated: "2026-08-10T23:47:26.697Z"
locale: en
meta:
description: "Niche score 70/100 · $2.5M/yr market · 923K searches/yr · $85.07 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 70/100 · $2.5M/yr market · 923K searches/yr · $85.07 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Pond Liner — $2.5M/yr Amazon US Niche (2026) - Flapen"
---
# **pond liner**
**Launch it**
A $2.5M/yr market growing +77.7% this quarter with returns at 2.3% — clears our launch bar.
Market size 95Growth 82Conversion 40Competition 46Returns 67Price range 33Avg price 80Brand share 58Review moat 84Quality gap 98
**Quality gap**
**Incredible****3.8★**
avg incumbent rating — lower means beatable quality
**Market size**
**Incredible****$2.5M**
$2.5M/yr · 923K searches
**Review moat**
**Great****318.54**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Great****+77.7%**
90-day search growth — must beat 0% to launch
**Avg price**
**Great****$85.07**
avg listing price — sweet spot $15–$100
**Returns**
**Good****2.3%**
return rate — above 5% kills the launch gate
**Brand share**
**Good****70%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Okay****3.2%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Okay****$19.08–$265.81**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, pond liner is a $2.5M/yr Amazon United States market (923K searches/yr). The top 5 brands hold 70% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Launch it — 70/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **pond liner market data**
- **Units sold / yr**
- **30K–40K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **$2.6M–$3.4M**
- units × avg price
- **Conversion rate**
- **3.2%**
- **Avg BSR**
- **#57**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **3.7%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **181 days**
## **Competition & brand share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **▼falling
**Sellers**
**20**
**Top-5 brand share**
**70%**
Top 20: 100%
**Top-5 click share**
**57%**
Top 20: 95%
**Open market**
**25%**
- ToLanbbt27% - Adroiteet22% - DGSL8% - MAPORCH7% - SDLDEER7% - PAMAZY5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +77.7% search growth over the last 90 days.
30K20KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 5.3×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/pond-liner/trend)
## **Top pond liner search terms**
- **pond liner**589K/yr+76.5%1.8% conv. - **pond liners for outdoor ponds**101K/yr+72.9%2.2% conv. - **pond liner 45 mil**36K/yr+91.6%0.7% conv. - **epdm pond liner**33K/yr+106.6%0.7% conv. - **pond liners**33K/yr+75.5%1.1% conv. - **45 mil pond liner**15K/yr+161.9%0.4% conv. - **fish pond liner**18K/yr+46.6%0.9% conv. - **koi pond liner**18K/yr+48.0%0.9% conv. - **rubber pond liner**15K/yr+79.7%0.9% conv. - **plastic pond liner**9K/yr+27.3%0.8% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/pond-liner/search-terms)
## **Top pond liner 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%$251K20%$501K30%$752K40%$1.0M1101001K10K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**ToLanbbt Pond Liner 7 x 10 Ft 20 Mil HDPE UV Resistant Preformed Pond Liner Easy Cutting Underlayment for Fountain Waterfall Koi Pondsand Water Garden (Black)**ToLanbbt**$20.63**4.5★711 rev](https://www.amazon.com/dp/B0B7WC6Z8N) [2**Adroiteet 10 x 15 FT Pond Liner 20 Mil HDPE Pond Liners for Outdoor Ponds**Adroiteet**$39.66**4.3★1,213 rev](https://www.amazon.com/dp/B0BVB8BS5K) [3**MAPORCH Pond Liner for Outdoor Ponds - Heavy Duty Koi Fish Pool Liner - 16.5 x 26.5 ft HDPE 20 Mil - UV Resistant Waterproof Underlayment**MAPORCH**$123.47**4.1★229 rev](https://www.amazon.com/dp/B09BMMFT5R) [4**DGSL Pond Liner 20 Mil 7 X 10 FT Pond Liners for Outdoor Ponds HDPE Fish Pond Liner for Natural Looking Ponds Aquaculture Koi Ponds and Water Garden Preformed Large Size Easy Cutting**DGSL**$19.08**4.3★285 rev](https://www.amazon.com/dp/B0BYZ7Y2RT) [5**TezhiIe Pond Liner 13 x 17 FT LDPE Pond Liners for Outdoor Ponds 20 Mil Thickness Easy Cutting Fish Pond Liner Flexible & Durable Pond Liner for Aquaculture Koi Ponds Water Garden**Tezhile**$59.13**3.8★54 rev](https://www.amazon.com/dp/B0DRD7KKTC)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**TEZONG Pond Liner 15x20Ft Pond Liners for Outdoor 28Mil PE Black Koi Fish Pond Liner Reinforced Pond Underlayment for Water Garden Waterfall Fountain**TEZONG**$63.77**116 rev3mo ago](https://www.amazon.com/dp/B0GXDY25VW) [**POPOSOAP Preformed Pond Liner 33 Gallon Rigid Pond Liner with Integrated Plant Shelves Heavy Duty U-V Resistant Plastic Preformed Pond for Backyard Patio Fountain Water Lily and Koi Pond-P797**POPOSOAP**$186.40**9 rev3mo ago](https://www.amazon.com/dp/B0GGXYWDTR) [![PAMAZY [Premium] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (9.8 x 13.1FT)](https://m.media-amazon.com/images/I/51SWxeu4w2L.jpg)**PAMAZY \[Premium\] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (9.8 x 13.1FT)**PAMAZY**$99.10**1 rev3mo ago](https://www.amazon.com/dp/B0GGH23RZM) [![PAMAZY [Premium] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (13.1 x 19.7FT)](https://m.media-amazon.com/images/I/51w+49BbB+L.jpg)**PAMAZY \[Premium\] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (13.1 x 19.7FT)**PAMAZY**$168.01**1 rev6mo ago](https://www.amazon.com/dp/B0GGH5W9V2) [![PAMAZY [Premium] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (19.7 x 26.2FT)](https://m.media-amazon.com/images/I/51RRuaq0uRL.jpg)**PAMAZY \[Premium\] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (19.7 x 26.2FT)**PAMAZY**$245.72**2 rev6mo ago](https://www.amazon.com/dp/B0GGGRNPTC)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[![PAMAZY [Premium] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (13.1 x 19.7FT)](https://m.media-amazon.com/images/I/51w+49BbB+L.jpg)**PAMAZY \[Premium\] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (13.1 x 19.7FT)**PAMAZY**$168.01**1.0★**▲ 121%**](https://www.amazon.com/dp/B0GGH5W9V2) [![PAMAZY [Premium] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (19.7 x 26.2FT)](https://m.media-amazon.com/images/I/51RRuaq0uRL.jpg)**PAMAZY \[Premium\] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (19.7 x 26.2FT)**PAMAZY**$245.72**3.0★**▲ 120%**](https://www.amazon.com/dp/B0GGGRNPTC) [**TEZONG Pond Liner 15x20Ft Pond Liners for Outdoor 28Mil PE Black Koi Fish Pond Liner Reinforced Pond Underlayment for Water Garden Waterfall Fountain**TEZONG**$63.77**3.9★**▲ 119%**](https://www.amazon.com/dp/B0GXDY25VW) [![PAMAZY [Premium] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (9.8 x 13.1FT)](https://m.media-amazon.com/images/I/51SWxeu4w2L.jpg)**PAMAZY \[Premium\] 45 Mil LDPE Pond Liner with Seam Tape Pond Lining for Fish Pond Performed Garden Ponds Large Pond Liner for Fishpond Koi Pond Waterfall Streams (9.8 x 13.1FT)**PAMAZY**$99.10**1.0★**▲ 111%**](https://www.amazon.com/dp/B0GGH23RZM) [**POPOSOAP Preformed Pond Liner 33 Gallon Rigid Pond Liner with Integrated Plant Shelves Heavy Duty U-V Resistant Plastic Preformed Pond for Backyard Patio Fountain Water Lily and Koi Pond-P797**POPOSOAP**$186.40**3.2★**▲ 107%**](https://www.amazon.com/dp/B0GGXYWDTR)
**~~View all trending →~~**
## **What buyers say about pond liner**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**23%
*“Good quality and easy to install”*
**Durability**10%
*“Durable,”*
**Ease Of Use**9%
*“Easy to use”*
**Thickness**7%
*“Thick, Easy to Install”*
**Advertised Vs Actual Product**6%
*“As described”*
**Strength**6%
*“Sturdy”*
**Value For Money**6%
*“Good value”*
**Weight Heavy**4%
*“Very heavy dury we laid it over a plastic kiddie pool so far so good”*
**Size-Overall**3%
*“Fits perfect”*
**Water Resistance**3%
*“Excellent liner that is very sturdy and waterproof”*
### **What buyers complain about **
**Leak-Proof**21%
*“a small leak”*
**Thickness**16%
*“Its thick”*
**Quality-Overall**9%
*“Absolute garbage”*
**Size-Overall**5%
*“Smaller than I was expecting”*
**Durability**5%
*“Not durable at all”*
**Water Resistance**4%
*“Didn't hold water”*
**Material Quality**4%
*“I am not happy with the material's durability”*
**Flexibility**3%
*“It isn't flexible at all”*
**Advertised Vs Actual Product**3%
*“Pictures are deceiving”*
**Value For Money**3%
*“NOT worth the price”*
### **Top return reasons **
**Size-Overall**49%
**Material Quality**10%
**Thickness**5%
**Thin**5%
**Leak-Proof**5%
**Advertised Vs Actual Product**5%
**Value For Money**4%
**Flexibility**4%
**Water Resistance**3%
**Functionality-Overall**2%
## **Common questions**
- **Is pond liner profitable to sell on Amazon United States?**
- The niche generates $2.5M/yr across 24 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is +77.7%. Flapen's verdict: Launch it (70/100).
- **How competitive is the pond liner niche?**
- 15 brands and 20 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 70% of demand.
- **What do buyers complain about in pond liner?**
- Top complaints mined from reviews: Leak-Proof, Thickness, Quality-Overall. The return rate is 2.3%.
- **When does demand for pond liner peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 5.3× the quietest.
- **What does it cost to enter the pond liner niche?**
- Listings span $19.08–$265.81; the average listing price is $85.07 (sweet spot $15–$100). The average incumbent carries 319 reviews — the moat a new listing must climb.
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