Is dolphin replacement cord profitable to sell on Amazon United States?

The niche generates $210K/yr across 18 tracked products. 6 of 8 products launched in the last 360 days are still selling. 90-day search growth is +296.2%. Flapen's verdict: Worth a look (55/100).

How competitive is the dolphin replacement cord niche?

6 brands and 16 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 99% of demand.

What do buyers complain about in dolphin replacement cord?

Top complaints mined from reviews: Durability, Functionality-Overall, Connectivity-Overall. The return rate is 3.0%.

When does demand for dolphin replacement cord peak?

Demand peaks in May–Jun–Jul–Aug; the busiest month runs 20.0× the quietest.

What does it cost to enter the dolphin replacement cord niche?

Listings span $13.51–$288.91; the average listing price is $148.64 (sweet spot $15–$100). The average incumbent carries 71 reviews — the moat a new listing must climb.

dolphin replacement cord

Worth a look

Shows demand growing +296.2% this quarter, but brand-locked demand (top 5 brands take 99% of clicks) keeps it on the watch list.

Growth

Incredible+296.2%

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

Review moat

Incredible71.06

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Avg price

Good$148.64

avg listing price — sweet spot $15–$100

Returns

Good3.0%

return rate — above 5% kills the launch gate

Conversion

Okay3.9%

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

Competition

Okay58%

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

Market size

Okay$210K

$210K/yr · 36K searches

Price range

Okay$13.51–$288.91

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

Brand share

Bad99%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, dolphin replacement cord is a $210K/yr Amazon United States market (36K searches/yr). The top 5 brands hold 99% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 55/100.

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

dolphin replacement cord market data

Units sold / yr: 2K–2K; avg 0–100/product
Revenue / yr: $223K–$297K; units × avg price
Conversion rate: 3.9%
Avg BSR: #1,046
Page quality: 0%
Prime: 56%
Sponsored: 50%
Out of stock: 29.1%
Avg brand age: 32 months
Avg seller age: 184 days

Competition & brand share

The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 falling

Sellers

Top-5 brand share

99%

Top 20: 100%

Top-5 click share

58%

Top 20: 100%

Open market

Gearwiz47%
Dolphin43%
Generic6%
Zymurgoes2%
ULTICOR1%
Hihitomorrow1%

Demand & seasonality

Weekly Amazon search volume, last 99 weeks — +296.2% search growth over the last 90 days.

Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 20.0×

Open Trend

Top dolphin replacement cord search terms

dolphin nautilus cc plus replacement cord8K/yr +376.8%4.1% conv.
dolphin nautilus cc plus cord6K/yr +507.9%4.1% conv.
dolphin maytronics power cord4K/yr +475.8%2.8% conv.
dolphin nautilus cc plus cable4K/yr +315.5%4.7% conv.
dolphin pool cleaner cord5K/yr +78.3%2.2% conv.
dolphin power cord3K/yr +413.9%2.1% conv.
dolphin replacement cord4K/yr +213.3%2.2% conv.
9995862-diy3K/yr +236.5%7.6% conv.

All search terms

Top dolphin replacement cord 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 18 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Dolphin Genuine Replacement Part Durable 60 FT Blue Cable with Swivel for Tangle-Free Operation 99958821-DIY

Dolphin$113.614.2★37 rev

Gearwiz 9995862 60ft Blue Cable Only Compatible with Dolphin Pool Robot Nautilus CC Plus [Non WiFi] M200 9995862 Includes 2 Big Floats and Swivel for Tangle-Free Operation [2 Prongs]

Gearwiz$163.013.8★130 rev

Gearwiz 9995884 60ft Cable Only Compatible with: S100 Echo Saturn Cayman Nautilus CC (NOT NAUTILUS CC PLUS) Encore Protetus DX3 Advantage Prowler 917 Active 15 T25 Explorer E20 and Solo.

Gearwiz$152.214.6★40 rev

9995862-60ft Blue Cable Only Compatible with Dolphin Pool Robot Nautilus CC Plus [Non WiFi] M200 9995862 Includes 2 Big Floats and Swivel for Tangle-Free Operation [2 Prongs]

Gearwiz$164.254.2★45 rev

Gearwiz 9995861-60ft Blue Cable Only Compatible with: Advantage Plus Atlantis Deluxe 3 DX3 (NOT Proteus DX3) DX3S Endeavor Nautilus (Old) Neptune Orion Primal Quest Supreme M3

Gearwiz$112.863.5★14 rev

Newest

by launch date

9995862 60ft Blue Cable Replacement for Dolphin Nautilus CC Plus (Non-WiFi) & M200 Pool Robot Seamless Integration Note: Not for CC Plus WiFi

Generic$167.131 rev

2mo ago

Dolphin Genuine Replacement Part Durable 50 FT Blue Cable for Agile Robot Movement 9995884-DIYF

Dolphin$98.568 rev

2mo ago

Gearwiz 9995862-60ft Blue Cable Only Compatible with Dolphin Pool Robot Nautilus CC Plus [Non WiFi] M200 9995862 Includes 2 Big Floats and Swivel [2 Prongs] Updated

Gearwiz$168.601 rev

3mo ago

9995862-60ft Blue Cable Only Compatible with Dolphin Pool Robot Nautilus CC Plus [Non WiFi] M200 9995862 Includes 2 Big Floats and Swivel for Tangle-Free Operation [2 Prongs]

Gearwiz$164.2545 rev

6mo ago

Gearwiz 9995862 60ft Blue Cable Only Compatible with Dolphin Pool Robot Nautilus CC Plus [Non WiFi] M200 9995862 Includes 2 Big Floats and Swivel for Tangle-Free Operation [2 Prongs]

Gearwiz$163.01130 rev

10mo ago

What buyers say about dolphin replacement cord

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

What buyers love

Size-Overall21%

“Fit as advertised”

Assembly/Installation17%

“Easy Install”

Advertised Vs Actual Product10%

“Better than I thought”

Value For Money9%

“Worth it”

Quality-Overall8%

“The rest of the cable is very good quality”

Ease Of Use8%

“Quick & Easy”

Functionality-Overall5%

“Worked perfectly”

Connectivity-Overall5%

“So far this cable is working great”

Ease Of Cleaning4%

“Pool cleaner is working as good as new”

Durability2%

“Popped it in, and my old Nautilus CC is back to working like new”

What buyers complain about

Durability23%

“Stopped working in one day”

Functionality-Overall15%

“Didnt work”

Connectivity-Overall7%

“Does not stay connected properly to app”

Quality-Overall7%

“it destroys their reputation”

Rusts/Corrodes6%

“causing the connection to corrode”

Value For Money4%

“they'll ask to buy another cable which I am not willing to spend $100 each time”

Assembly/Installation4%

“Not as pictured- Comes with no instructions on how to install- as many have mentioned”

Advertised Vs Actual Product3%

“does not come with weight- they should not show picture with weight as it's deceiving- cord is much heavier than original- does anyone know best way to remove weight from original”

Socket/Port/Plug2%

“It's easy to plug in incorrectly”

Product Condition2%

“Arrived Used”

Top return reasons

Functionality-Overall20%

Size-Overall17%

Connectivity-Overall17%

Defective Material/Parts16%

Socket/Port/Plug8%

Advertised Vs Actual Product7%