Is emi filter profitable to sell on Amazon United States?

The niche generates $226K/yr across 20 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +2.3%. Flapen's verdict: Skip it (44/100).

How competitive is the emi filter niche?

7 brands and 143 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 96% of demand.

What do buyers complain about in emi filter?

Top complaints mined from reviews: Durability, Value For Money, Product Condition. The return rate is 2.0%.

When does demand for emi filter peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the emi filter niche?

Listings span $9.96–$166.45; the average listing price is $63.62 (sweet spot $15–$100). The average incumbent carries 1,058 reviews — the moat a new listing must climb.

emi filter

Skip it

Brand-locked demand (top 5 brands take 96% of clicks) — this niche doesn't clear our bar today.

Avg price

Great$63.62

avg listing price — sweet spot $15–$100

Returns

Great2.0%

return rate — above 5% kills the launch gate

Review moat

Good1,058.3

avg incumbent reviews — the moat a new listing must climb

Conversion

Good5.0%

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

Price range

Good$9.96–$166.45

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

Market size

Okay$226K

$226K/yr · 71K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+2.3%

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

Competition

Okay68%

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

Brand share

Bad96%

top-5 brand share — brand-locked demand

Signals High Price

According to Flapen's Amazon United States niche tracking, emi filter is a $226K/yr Amazon United States market (71K searches/yr). The top 5 brands hold 96% of demand. Verdict: Skip it — 44/100.

Data updated Jul 17, 2026 · scored weekly · How we score niches

emi filter market data

Units sold / yr: 4K–5K; avg 100–250/product
Revenue / yr: $254K–$318K; units × avg price
Conversion rate: 5.0%
Avg BSR: #451
Page quality: 0%
Prime: 90%
Sponsored: 65%
Out of stock: 4.9%
Avg brand age: 57 months
Avg seller age: 180 days

Competition & brand share

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.

Brands

7 falling

Sellers

143

Top-5 brand share

96%

Top 20: 100%

Top-5 click share

68%

Top 20: 100%

Open market

TRIPP LITE81%
LCLCTC5%
uxcell4%
E-outstanding3%
Belkin3%
briidea2%
Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 54 weeks — +2.3% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top emi filter search terms

tripp lite isobar25K/yr +8.1%4.1% conv.
emi filter13K/yr -2.9%1.6% conv.
isobar13K/yr +0.1%2.9% conv.
isobar surge protector10K/yr +5.5%4.0% conv.
tripp lite isobar surge protector4K/yr -2.8%4.7% conv.
ac line filter3K/yr +6.2%0.7% conv.
emi filter for led lights3K/yr -25.0%0.8% conv.

All search terms

Top emi 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.

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

All 20 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Tripp Lite ISOBAR8ULTRA Isobar 8 Outlet Heavy Duty Power Strip Surge Protector 3840 Joules 12ft Cord Flat Plug Metal Power Strip Industrial Garage Work Shop Bench Under Desk and Wall Mountable

TRIPP LITE$94.244.6★3,278 rev

Tripp Lite Isobar ISOBLOK2-0 Heavy Duty Outlet Extender Wall Power Strip Surge Protector 2 Outlets Direct Plug-in White Metal Power Strip Industrial Garage Work Shop Bench

TRIPP LITE$43.354.5★2,789 rev

Tripp Lite ISOBAR4ULTRA Isobar 4 Outlet Heavy Duty Power Strip Surge Protector 3330 Joules 6ft Cord Flat Plug Metal Power Strip Industrial Garage Work Shop Bench Under Desk and Wall Mountable

TRIPP LITE$77.824.6★1,015 rev

120V Power EMI line filte Noise Suppressor for Home Appliances Industrial & Medical Equipment 115V/250V 20A 50/60Hz

LCLCTC$17.964.0★16 rev

Tripp Lite ISOBAR2-6 Isobar 2 Outlet Heavy Duty Power Strip Surge Protector 1410 Joules 6ft Cord Flat Plug Metal Power Strip Industrial Garage Work Shop Bench Under Desk and Wall Mountable

TRIPP LITE$55.004.6★3,278 rev

Newest

by launch date

JUNNUJ Heavy Duty Power Strip Surge Protector 4800J 6 Outlets with EMI/RFI Filtering and Noise Isolated Banks Wall Mount Metal Multiple Plugs for Industrial Garage Shop 6FT Extension Cord Flat Plug

JUNNUJ$69.7750 rev

5mo ago

120V Power EMI line filte Noise Suppressor for Home Appliances Industrial & Medical Equipment 115V/250V 20A 50/60Hz

LCLCTC$17.9616 rev

1y ago

Briidea Dirty Electricity Filters Reduce High-Frequency Noise Caused by Electronic Devices for a Stable and Clean Power Supply for You Extend the Lifespan of Your Electric Device White

briidea$32.00114 rev

2y ago

Belkin 12-Outlet Surge Protector Power Strip w/ 12 AC Outlets & 8ft Flat Plug UL-Listed Heavy-Duty Extension Cord for Home Office Travel Computer Laptop Charger - 3 780 Joules of Protection

Belkin$26.703,146 rev

3y ago

E-outstanding EMI Filter 115/250VAC 10A Suppressor Power Noise Filter With Wire

E-outstanding$9.9642 rev

6y ago

What buyers say about emi filter

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

What buyers love

Quality-Overall21%

“Highly recommend for its build quality and simplicity”

Advertised Vs Actual Product10%

“Great as expected”

Socket/Port/Plug9%

“12 slots and USB ports”

Drop/Impact Protection7%

“Perfect Surge Protector”

Value For Money6%

“Great product for a very good price”

Design-Overall5%

“The design is great”

Durability5%

“It seems well made and durable”

Strength5%

“The metal housing feels sturdy”

Size-Overall4%

“the size was perfect”

Security2%

“Safe and secure”

What buyers complain about

Durability11%

“Failed after 2 months”

Value For Money7%

“overpriced”

Product Condition7%

“This item is already used”

Noise Level6%

“With a load there is a loud buzzing sound”

Size-Overall6%

“Those dimensions don't count the mounting brackets which stick out an extra 1 or so on each end”

Quality-Overall5%

“Poor quality”

Socket/Port/Plug5%

“just wish it had USB ports”

Advertised Vs Actual Product4%

“Incorrect rating in description”

Defective Material/Parts4%

“Missing parts, probably broken too”

Weight Heavy3%

“Too heavy for loose socket”

Top return reasons

Size-Overall22%

Functionality-Overall14%

Defective Material/Parts12%

Product Condition9%

Socket/Port/Plug9%

Value For Money7%

Advertised Vs Actual Product6%

Noise Level2%

Compatibility-Overall2%

Connectivity-Overall2%

Common questions

Is emi filter profitable to sell on Amazon United States?: The niche generates $226K/yr across 20 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +2.3%. Flapen's verdict: Skip it (44/100).
How competitive is the emi filter niche?: 7 brands and 143 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 96% of demand.
What do buyers complain about in emi filter?: Top complaints mined from reviews: Durability, Value For Money, Product Condition. The return rate is 2.0%.
When does demand for emi filter peak?: Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the emi filter niche?: Listings span $9.96–$166.45; the average listing price is $63.62 (sweet spot $15–$100). The average incumbent carries 1,058 reviews — the moat a new listing must climb.