Is ph test kit profitable to sell on Amazon United States?

The niche generates $981K/yr across 32 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +6.9%. Flapen's verdict: Launch it (60/100).

How competitive is the ph test kit niche?

12 brands and 114 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 86% of demand.

When does demand for ph test kit peak?

Demand peaks in Jun–Jul; the busiest month runs 2.4× the quietest.

What does it cost to enter the ph test kit niche?

Listings span $4.11–$81.01; the average listing price is $25.42 (sweet spot $15–$100). The average incumbent carries 4,185 reviews — the moat a new listing must climb.

ph test kit

Launch it

A $981K/yr market growing +6.9% this quarter with returns at 0.6% — clears our launch bar.

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Avg price

Incredible$25.42

avg listing price — sweet spot $15–$100

Conversion

Great10.3%

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

Price range

Great$4.11–$81.01

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

Market size

Great$981K

$981K/yr · 374K searches

Competition

Good46%

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

Growth

Okay+6.9%

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

Brand share

Okay86%

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

Review moat

Bad4,185.31

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, ph test kit is a $981K/yr Amazon United States market (374K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Jun–Jul. Verdict: Launch it — 60/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

ph test kit market data

Units sold / yr: 30K–40K; avg 1,000–1,250/product
Revenue / yr: $763K–$1.0M; units × avg price
Conversion rate: 10.3%
Avg BSR: #234
Page quality: 0%
Prime: 94%
Sponsored: 63%
Out of stock: 0.0%
Avg brand age: 67 months
Avg seller age: 161 days

Competition & brand share

The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

114

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

46%

Top 20: 86%

Open market

11%

General Hydroponics68%
Bloom City7%
TAYLOR6%
GH Flora Series'3%
Dave Ocean333%
VIVOSUN3%
Open — no brand owns it (6 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +6.9% search growth over the last 90 days.

Peak months: Jun, Jul · busiest ÷ quietest = 2.4×

Open Trend

Top ph test kit search terms

general hydroponics90K/yr +26.6%4.7% conv.
ph up and down66K/yr -14.4%9.5% conv.
general hydroponics flora series32K/yr +49.1%7.5% conv.
ph test kit27K/yr +28.7%2.3% conv.
ph up and down for plants19K/yr +28.8%8.1% conv.
general hydroponics nutrients64K/yr -71.7%3.5% conv.
ph kit6K/yr +40.4%4.3% conv.
ph up for plants8K/yr +75.1%5.0% conv.
taylor r-00044K/yr +143.2%34.4% conv.
flora grow6K/yr +32.2%8.2% conv.

All search terms

Top ph test kit 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

General Hydroponics Ph Control Kit

General Hydroponics$20.774.7★28,701 rev

General Hydroponics FloraSeries Hydroponic Nutrient Fertilizer System Trial Pack with FloraMicro FloraBloom and FloraGro 1 qt.

General Hydroponics$44.004.9★47 rev

Bloom City Professional pH Up + Down Control Kit for Optimal Nutrient Uptake (Two 1/2 Pint Bottles) 16 Total oz

Bloom City$19.554.6★3,039 rev

Taylor Technologies R-0004 pH Indicator Reagent 2 Ounce

TAYLOR$9.104.6★1,010 rev

General Hydroponics Flora Series: FloraMicro FloraBloom FloraGro - 3-Part Hydroponic Nutrient System 1 qt. Bottles

General Hydroponics$37.914.8★1,411 rev

Newest

by launch date

Hydroponics pH Up Down Solution pH Control Kit pH Adjuster for Hydroponic Aquaponic Balance Nutrient Solution Include pH Test Strips(8.45oz/250ml)

GIDIGI$18.7970 rev

11mo ago

General Hydroponics FloraSeries Hydroponic Nutrient Fertilizer System Trial Pack with FloraMicro FloraBloom and FloraGro 1 qt.

General Hydroponics$44.0047 rev

1y ago

VIVOSUN pH Up & pH Down Kit 1 Quart Each pH Control Kit for Balanced pH Level and Optimal Nutrient Uptake pH Adjuster Liquid Fertilizer for All Plants and All Growing Systems

VIVOSUN$34.57137 rev

2y ago

General Hydroponics FloraBloom 0-5-4 Plant Food Part of FloraSeries Advanced Nutrient System for Plants 1 Quart

General Hydroponics$14.85209 rev

2y ago

General Hydroponics FloraGro 2-1-6 Plant Food Part of FloraSeries Advanced Nutrient System for Plants 1 Quart

General Hydroponics$14.49166 rev

2y ago

Common questions

Is ph test kit profitable to sell on Amazon United States?: The niche generates $981K/yr across 32 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +6.9%. Flapen's verdict: Launch it (60/100).
How competitive is the ph test kit niche?: 12 brands and 114 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 86% of demand.
When does demand for ph test kit peak?: Demand peaks in Jun–Jul; the busiest month runs 2.4× the quietest.
What does it cost to enter the ph test kit niche?: Listings span $4.11–$81.01; the average listing price is $25.42 (sweet spot $15–$100). The average incumbent carries 4,185 reviews — the moat a new listing must climb.

ph test kit

ph test kit market data

Competition & brand share

Demand & seasonality

Top ph test kit search terms

Top ph test kit products on Amazon

Top sellers

Newest

Trending

Common questions

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