freshwater mps chlorine free oxidizer
Worth a lookShows searches that convert (19.2% search→purchase), but a small market ($72K/yr) keeps it on the watch list.
Conversion
Incredible19.2%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Avg price
Incredible$44.76avg listing price — sweet spot $15–$100
Price range
Incredible$20.98–$86.62cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great374.69avg incumbent reviews — the moat a new listing must climb
Growth
Good+21.4%90-day search growth — must beat 0% to launch
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Competition
Bad76%top-5 click share — a locked-up shelf
Market size
Bad$72K$72K/yr · 8K searches
According to Flapen's Amazon United States niche tracking, freshwater mps chlorine free oxidizer is a $72K/yr Amazon United States market (8K searches/yr). The top 5 brands hold 85% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
freshwater mps chlorine free oxidizer market data
- Units sold / yr
- 2K–2K
- avg 0–100/product
- Revenue / yr
- $67K–$90K
- units × avg price
- Conversion rate
- 19.2%
- Avg BSR
- #330
- Page quality
- 0%
- Prime
- 62%
- Sponsored
- 100%
- Out of stock
- 1.3%
- Avg brand age
- 68 months
- Avg seller age
- 173 days
Competition & brand share
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 flat
Sellers
25
Top-5 brand share
85%
Top 20: 100%
Top-5 click share
76%
Top 20: 100%
Open market
10%
- Hot Spring33%
- Freshwater30%
- MAV AquaDoc7%
- HTH7%
- POOLACC7%
- SHAPON5%
- Open — no brand owns it (3 brands, 10%)
Demand
Weekly Amazon search volume, last 51 weeks — +21.4% search growth over the last 90 days.Top freshwater mps chlorine free oxidizer 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.
All 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
FreshWater MPS 5lb 80031 White
Freshwater$60.754.8★105 rev
80030 MPS Chlorine Free Oxidizer 2.5lb
Hot Spring$34.594.6★180 rev
Hot Spring MPS 5lbs
Hot Spring$66.594.7★171 rev
HTH Spa 86135 Non Chlorine Shock Oxidizer Spa & Hot Tub Chemical Clears Cloudy Water 2.25 lbs
HTH$22.004.8★913 rev
POOLACC Non-Chlorine Spa Shock for Hot Tub - 5 lbs Chlorine-Free Shock Oxidizer Treatment for Hot Tubs Spas and Swimming Pools Fast Acting Quick Dissolving Oxidizing Shock for Crystal Clear Water
POOLACC$41.674.7★139 rev
Newest
by launch date
AquaDoc Oxidizing Shock for Hot Tub - 32oz - Oxygen Based Non Chlorine Spa Shock Oxidizer for Hot Tub to Support Bromine and Chlorine Systems - Made in USA
MAV AquaDoc$26.2881 rev
SHAPON 32 Oz Non-Chlorine Hot Tubs Shock Spa Oxidizer for Clean Water (2 Pack)
SHAPON$33.2696 rev
POOLHOUR 32 Oz Non-Chlorine Oxidizing Shock for Hot Tub Oxidizer for Spas and Swimming Pools Hot Tub Shock 2 Pack
POOLHOUR$34.27102 rev
POOLHOUR 32 Oz Chlorine-Free Oxidizing Shock for Hot Tub Oxidizer for Spas and Swimming Pools Hot Tub Shock 1 Pack
POOLHOUR$20.98112 rev
POOLACC Non-Chlorine Spa Shock for Hot Tub - 5 lbs Chlorine-Free Shock Oxidizer Treatment for Hot Tubs Spas and Swimming Pools Fast Acting Quick Dissolving Oxidizing Shock for Crystal Clear Water
POOLACC$41.67139 rev
Trending
90-day click momentumAquaDoc Oxidizing Shock for Hot Tub - 32oz - Oxygen Based Non Chlorine Spa Shock Oxidizer for Hot Tub to Support Bromine and Chlorine Systems - Made in USA
MAV AquaDoc$26.284.4★
SHAPON 32 Oz Non-Chlorine Hot Tubs Shock Spa Oxidizer for Clean Water (2 Pack)
SHAPON$33.264.5★
Hot Spring MPS 5lbs
Hot Spring$66.594.7★
HTH Spa 86135 Non Chlorine Shock Oxidizer Spa & Hot Tub Chemical Clears Cloudy Water 2.25 lbs
HTH$22.004.8★
FreshWater MPS 5lb 80031 White
Freshwater$60.754.8★
What buyers say about freshwater mps chlorine free oxidizer
What buyers praise and complain about, mined from review topics.What buyers love
“Affordable”
“The container is easy to use”
“Works as advertised”
“Excellent product”
“so no strong chemical smell”
“super clean”
“Keeps water stable”
“it keeps everything crystal clear”
“its been a really easy addition to my maintenance routine”
“I would recommend for the size you receive and affordability”
What buyers complain about
“Dusty with Chemical Smell”
“Very awkward to open”
“Not effective”
“One note- it is a big bottle”
“I tend to be picky about my chemicals”
“The directions in turning the safety top is odd”
“This is not providing the same water clarity as competing products”
“not as drying as some shock”
“this was not disclosed in the product description or information”
“Its not the cheapest”
Top return reasons
Common questions
- Is freshwater mps chlorine free oxidizer profitable to sell on Amazon United States?
- The niche generates $72K/yr across 13 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is +21.4%. Flapen's verdict: Worth a look (52/100).
- How competitive is the freshwater mps chlorine free oxidizer niche?
- 9 brands and 25 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 85% of demand.
- What do buyers complain about in freshwater mps chlorine free oxidizer?
- Top complaints mined from reviews: Smell, Ease Of Use, Functionality-Overall. The return rate is 0.3%.
- What does it cost to enter the freshwater mps chlorine free oxidizer niche?
- Listings span $20.98–$86.62; the average listing price is $44.76 (sweet spot $15–$100). The average incumbent carries 375 reviews — the moat a new listing must climb.