Is calcium filter for garden hose profitable to sell on Amazon United States?

The niche generates $153K/yr across 40 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +16.8%. Flapen's verdict: Worth a look (53/100).

How competitive is the calcium filter for garden hose niche?

13 brands and 42 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 85% of demand.

What do buyers complain about in calcium filter for garden hose?

Top complaints mined from reviews: Filtration, Leak-Proof, Functionality-Overall. The return rate is 2.5%.

When does demand for calcium filter for garden hose peak?

Demand peaks in Jul–Aug; the busiest month runs 2.7× the quietest.

What does it cost to enter the calcium filter for garden hose niche?

Listings span $10.73–$107.58; the average listing price is $32.51 (sweet spot $15–$100). The average incumbent carries 1,143 reviews — the moat a new listing must climb.

calcium filter for garden hose

Worth a look

Shows a sweet-spot price point ($32.51 avg), but a small market ($153K/yr) keeps it on the watch list.

Avg price

Incredible$32.51

avg listing price — sweet spot $15–$100

Price range

Great$10.73–$107.58

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

Competition

Good42%

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

Returns

Good2.5%

return rate — above 5% kills the launch gate

Review moat

Good1,143.35

avg incumbent reviews — the moat a new listing must climb

Conversion

Good4.3%

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

Growth

Okay+16.8%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay85%

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

Market size

Okay$153K

$153K/yr · 109K searches

According to Flapen's Amazon United States niche tracking, calcium filter for garden hose is a $153K/yr Amazon United States market (109K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Jul–Aug. Verdict: Worth a look — 53/100.

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

calcium filter for garden hose market data

Units sold / yr: 3K–3K; avg 0–100/product
Revenue / yr: $81K–$98K; units × avg price
Conversion rate: 4.3%
Avg BSR: #13
Page quality: 0%
Prime: 100%
Sponsored: 98%
Out of stock: 0.2%
Avg brand age: 54 months
Avg seller age: 181 days

Competition & brand share

The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

42%

Top 20: 79%

Open market

11%

K&F CONCEPT54%
Tiffen14%
H&G lifestyles8%
Mornajina5%
NEEWER5%
GLACIER FRESH4%
Open — no brand owns it (7 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 98 weeks — +16.8% search growth over the last 90 days.

Peak months: Jul, Aug · busiest ÷ quietest = 2.7×

Open Trend

Top calcium filter for garden hose search terms

black mist filter27K/yr +2.4%1.0% conv.
mist filter17K/yr +6.8%1.2% conv.
diffusion filter12K/yr +37.4%0.3% conv.
calcium filter for garden hose6K/yr +100.0%5.9% conv.
pro mist filter11K/yr -9.6%0.8% conv.
mister filter4K/yr +211.9%15.1% conv.
misting system filter3K/yr +152.8%6.7% conv.
black pro mist filter4K/yr +29.6%0.3% conv.
black pro mist4K/yr -12.0%0.7% conv.
black diffusion filter4K/yr +0.6%0.9% conv.

All search terms

Top calcium filter for garden hose 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

K&F CONCEPT 67mm Black Diffusion 1/4 Filter Mist Cinematic Effect Filter with 18 Multi-Layer Coatings for Video/Vlog/Portrait Photography (K-Series)

K&F CONCEPT$27.704.7★1,702 rev

K&F CONCEPT 49mm Black Diffusion 1/4 Filter Mist Cinematic Effect Filter with 18 Multi-Layer Coatings for Video/Vlog/Portrait Photography (K-Series)

K&F CONCEPT$23.284.7★1,702 rev

Tiffen 49mm Black Pro-Mist 1/4 Filter|Black Pro-Mist Filter|Ultra Slim|Cinematic Effect Camera for Portrait Photography/Video/Vlog

Tiffen$50.614.7★3,103 rev

K&F CONCEPT 52mm Black Diffusion 1/4 Filter Mist Cinematic Effect Filter with 18 Multi-Layer Coatings for Video/Vlog/Portrait Photography (K-Series)

K&F CONCEPT$23.694.7★1,702 rev

Mornajina Calcium Inhibitor Filter Outdoor Misting System Protector for Mist Nozzle Preventing Scale Buildup from Clogging Up

Mornajina$12.564.3★529 rev

Newest

by launch date

K&F CONCEPT 67mm Black Diffusion Mist Effect 1/4 & Variable ND2-32(1-5 Stops) & Circular Polarizing Filter CPL-in 1 HD Lens Filter with 28 Multi-Coatings for Camera Lenses (Nano-X Series)

K&F CONCEPT$80.97339 rev

1y ago

NEEWER 67mm Black Diffusion 1/4 Filter for Mist Cinematic Effect Ultra Slim Dreamy Soft Filter Optical Glass Multiple Nano Coatings for Video Vlog Portrait Photography

NEEWER$18.17491 rev

1y ago

2pc Misting System Filter 100 Mesh Calcium Inhibitor Filter for 1/4 Tubing Quick Connect for Outdoor Cooling System Patio Outdoor Misting System Prevent Blockage

NFAMRZCAR$11.3252 rev

2y ago

Yoption Calcium Inhibitor Filter Outdoor Misting System Filter for Preventing Scale Buildup and Clogging of Garden Patio Misters - 1 Pack

Yoption$10.73111 rev

3y ago

K&F CONCEPT 67mm Black Diffusion 1/4 & 1/8 Filters Kit Mist Cinematic Effect Filters Set with Multi-Layer Coated for Camera Lens - K Series

K&F CONCEPT$40.06602 rev

3y ago

What buyers say about calcium filter for garden hose

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

What buyers love

Filtration16%

“Nice filters”

Quality-Overall10%

“Great price and quality build”

Value For Money10%

“Worth it”

Assembly/Installation9%

“Easy install”

Advertised Vs Actual Product9%

“Works as advertised”

Image/Picture Clarity4%

“It gives my pictures that nice glowy look”

Ease Of Use3%

“Easy to use”

Lenses3%

“would be able to protect my lens”

Brightness/Shine/Glow3%

“Adds a nice dreamy glow”

Water Resistance3%

“water is so much more clear since I started filling the pool with it after backwashing”

What buyers complain about

Filtration15%

“Terrible filter. in my case”

Leak-Proof13%

“Leaking”

Functionality-Overall11%

“Did not work”

Jamming/Clogging8%

“it was completely clogged”

Value For Money6%

“Not worth the cost”

Size-Overall6%

“Doesn't fit standard hose useless”

Quality-Overall5%

“Junk”

Advertised Vs Actual Product4%

“False advertising”

Spray/Flow4%

“Very poor flow”

Rusts/Corrodes3%

“Does not filter rust”

Top return reasons

Size-Overall29%

Filtration13%

Lenses13%

Compatibility-Overall9%

Functionality-Overall5%

Value For Money4%