---
title: "Ph Test Kit — $981K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/ph-test-kit"
last_updated: "2026-08-11T00:46:54.092Z"
locale: en
meta:
description: "Niche score 60/100 · $981K/yr market · 374K searches/yr · $25.42 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 60/100 · $981K/yr market · 374K searches/yr · $25.42 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Ph Test Kit — $981K/yr Amazon US Niche (2026) - Flapen"
---
# **ph test kit**
**Launch it**
A $981K/yr market growing +6.9% this quarter with returns at 0.6% — clears our launch bar.
Market size 77Growth 34Conversion 88Competition 64Returns 97Price range 84Avg price 95Brand share 31Review moat 25Quality gap 21
**Returns**
**Incredible****0.6%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$25.42**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****10.3%**
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**
**Good****46%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+6.9%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Bad****4,185.31**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
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 ~~](https://flapen.com/research/methodology)
## **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.
7K5KSpike '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun, Jul · busiest ÷ quietest = 2.4×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/ph-test-kit/trend)
## **Top ph test kit search terms**
- **general hydroponics**90K/yr+26.6%4.7% conv. - **ph up and down**66K/yr-14.4%9.5% conv. - **general hydroponics flora series**32K/yr+49.1%7.5% conv. - **ph test kit**27K/yr+28.7%2.3% conv. - **ph up and down for plants**19K/yr+28.8%8.1% conv. - **general hydroponics nutrients**64K/yr-71.7%3.5% conv. - **ph kit**6K/yr+40.4%4.3% conv. - **ph up for plants**8K/yr+75.1%5.0% conv. - **taylor r-0004**4K/yr+143.2%34.4% conv. - **flora grow**6K/yr+32.2%8.2% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/ph-test-kit/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.
0%5%$49K10%$98K15%$147K20%$196K101001K10K100K 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**General Hydroponics Ph Control Kit**General Hydroponics**$20.77**4.7★28,701 rev](https://www.amazon.com/dp/B000BNKWZY) [2**General Hydroponics FloraSeries Hydroponic Nutrient Fertilizer System Trial Pack with FloraMicro FloraBloom and FloraGro 1 qt.**General Hydroponics**$44.00**4.9★47 rev](https://www.amazon.com/dp/B0DN35CW7H) [3**Bloom City Professional pH Up + Down Control Kit for Optimal Nutrient Uptake (Two 1/2 Pint Bottles) 16 Total oz**Bloom City**$19.55**4.6★3,039 rev](https://www.amazon.com/dp/B08JHDVBY2) [4**Taylor Technologies R-0004 pH Indicator Reagent 2 Ounce**TAYLOR**$9.10**4.6★1,010 rev](https://www.amazon.com/dp/B0030EVB74) [5**General Hydroponics Flora Series: FloraMicro FloraBloom FloraGro - 3-Part Hydroponic Nutrient System 1 qt. Bottles**General Hydroponics**$37.91**4.8★1,411 rev](https://www.amazon.com/dp/B01I4U0M32)
**~~View all top sellers →~~**
### **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**$18.79**70 rev11mo ago](https://www.amazon.com/dp/B0FL284SFT) [**General Hydroponics FloraSeries Hydroponic Nutrient Fertilizer System Trial Pack with FloraMicro FloraBloom and FloraGro 1 qt.**General Hydroponics**$44.00**47 rev1y ago](https://www.amazon.com/dp/B0DN35CW7H) [**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**$34.57**137 rev2y ago](https://www.amazon.com/dp/B0CT88YRZP) [**General Hydroponics FloraBloom 0-5-4 Plant Food Part of FloraSeries Advanced Nutrient System for Plants 1 Quart**General Hydroponics**$14.85**209 rev2y ago](https://www.amazon.com/dp/B0CK53SN7Q) [**General Hydroponics FloraGro 2-1-6 Plant Food Part of FloraSeries Advanced Nutrient System for Plants 1 Quart**General Hydroponics**$14.49**166 rev2y ago](https://www.amazon.com/dp/B0CJKPF3FH)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**General Hydroponics FloraGro 2-1-6 Plant Food Part of FloraSeries Advanced Nutrient System for Plants 1 Quart**General Hydroponics**$14.49**4.8★**▲ 142%**](https://www.amazon.com/dp/B0CJKPF3FH) [**General Hydroponics FloraBloom 0-5-4 Plant Food Part of FloraSeries Advanced Nutrient System for Plants 1 Quart**General Hydroponics**$14.85**4.8★**▲ 77%**](https://www.amazon.com/dp/B0CK53SN7Q) [**General Hydroponics Ph Test Kit 1 oz**General Hydroponics**$12.43**4.7★**▲ 68%**](https://www.amazon.com/dp/B000BT32UA) [**Taylor Technologies R-0004 pH Indicator Reagent 2 Ounce**TAYLOR**$9.10**4.6★**▲ 66%**](https://www.amazon.com/dp/B0030EVB74) [**Hydroponics pH Up Down Solution pH Control Kit pH Adjuster for Hydroponic Aquaponic Balance Nutrient Solution Include pH Test Strips(8.45oz/250ml)**GIDIGI**$18.79**4.6★**▲ 63%**](https://www.amazon.com/dp/B0FL284SFT)
**~~View all trending →~~**
## **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.
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