Is ph increaser for hot tub profitable to sell on Amazon United States?

The niche generates $692K/yr across 9 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +6.5%. Flapen's verdict: Skip it (49/100).

How competitive is the ph increaser for hot tub niche?

6 brands and 70 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in ph increaser for hot tub?

Top complaints mined from reviews: Value For Money, Leak-Proof, Ease Of Use. The return rate is 0.4%.

When does demand for ph increaser for hot tub peak?

Demand is steady year-round — the busiest month runs 1.2× the quietest.

What does it cost to enter the ph increaser for hot tub niche?

Listings span $7.94–$33.57; the average listing price is $17.01 (sweet spot $15–$100). The average incumbent carries 2,962 reviews — the moat a new listing must climb.

ph increaser for hot tub

Skip it

Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.

Conversion

Incredible37.3%

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

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Avg price

Great$17.01

avg listing price — sweet spot $15–$100

Price range

Good$7.94–$33.57

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

Market size

Good$692K

$692K/yr · 109K searches

Review moat

Okay2,961.56

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+6.5%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad83%

top-5 click share — a locked-up shelf

Brand share

Bad97%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, ph increaser for hot tub is a $692K/yr Amazon United States market (109K searches/yr). The top 5 brands hold 97% of demand. Verdict: Skip it — 49/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

ph increaser for hot tub market data

Units sold / yr: 40K–50K; avg 3,000–4,000/product
Revenue / yr: $680K–$851K; units × avg price
Conversion rate: 37.3%
Avg BSR: #33
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 102 months
Avg seller age: 161 days

Competition & brand share

The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

83%

Top 20: 100%

Open market

SpaGuard58%
MAV AquaDoc15%
LEISURE TIME11%
FROG6%
CLOROX Pool&Spa6%
hth Spa3%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 103 weeks — +6.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.2×

Open Trend

Top ph increaser for hot tub search terms

ph increaser for hot tub53K/yr +12.9%29.8% conv.
hot tub ph increaser17K/yr +1.6%28.5% conv.
spa ph increaser15K/yr +8.1%28.3% conv.
spaguard ph increaser7K/yr +5.9%34.6% conv.
spa guard ph increaser for hot tub7K/yr -3.5%34.1% conv.
ph increaser for hot tub spa2K/yr +49.9%30.2% conv.
spa ph increaser for hot tub4K/yr -2.0%31.9% conv.
ph increaser for spa2K/yr -82.9%32.0% conv.

All search terms

Top ph increaser for hot tub 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 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

SpaGuard pH Increaser 1.12 lb Single Pack

SpaGuard$11.684.8★5,618 rev

Leisure Time 22339A Spa Up pH Increaser for Hot Tubs Prevents Corrosion and Equipment Damage Compatible with Various Sanitizers 2 lbs

LEISURE TIME$10.494.7★6,867 rev

AquaDoc Spa pH Increaser for Hot Tub - 32oz - Spa pH Up for Water Balance - Hot Tub Chemicals Made in USA

MAV AquaDoc$24.614.4★431 rev

SpaGuard pH Increaser 18 oz Pack of 3 pH Raiser for Spas & Hot Tubs Protects Equipment from Corrosion Balances Water

SpaGuard$26.834.8★5,618 rev

FROG JumpH pH Increaser for Hot Tubs and Swim Spas - 2 lb Bottle with TruDose Measuring Cap for Easy Maintenance & Balancing - 1 Pack

FROG$13.974.6★139 rev

Newest

by launch date

AquaDoc Spa pH Increaser for Hot Tub - 32oz (2 Pack) - Sodium Carbonate Spa pH Up for Water Balance - Made in USA

MAV AquaDoc$33.5764 rev

8mo ago

FROG JumpH pH Increaser for Hot Tubs and Swim Spas - 2 lb Bottle with TruDose Measuring Cap for Easy Maintenance & Balancing - 1 Pack

FROG$13.97139 rev

11mo ago

AquaDoc Spa pH Increaser for Hot Tub - 32oz - Spa pH Up for Water Balance - Hot Tub Chemicals Made in USA

MAV AquaDoc$24.61431 rev

4y ago

HTH Spa 86133 pH Up Spa & Hot Tub Chemical Raises pH Prevents Corrosion 2 lbs

hth Spa$9.08915 rev

4y ago

SpaGuard pH Increaser 18 oz Pack of 3 pH Raiser for Spas & Hot Tubs Protects Equipment from Corrosion Balances Water

SpaGuard$26.835,618 rev

9y ago

What buyers say about ph increaser for hot tub

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

What buyers love

Value For Money23%

“Good value”

Advertised Vs Actual Product22%

“As advertised”

Ease Of Use19%

“Easy to use and store”

Quality-Overall13%

“no complaints, just results”

Pureness3%

“Easy Liquid Option for pH Maintenance”

Instructions/User Manual/Troubleshooting2%

“The instructions are clear”

Efficiency2%

“Works well”

Smell1%

“There is no odor”

Locally Manufactured1%

“Made in USA”

Hygiene-Overall1%

“Stuff Works keeps our pH looking perfect”

What buyers complain about

Value For Money28%

“The powder versions may be more cost-effective”

Leak-Proof17%

“The bag was also leaking white powder”

Ease Of Use14%

“Also hard to open at first”

Size-Overall9%

“it was much smaller than what I have received in the past by same brand”

Color6%

“It was supposed to be black”

Product Condition6%

“Item was previously used”

Natural Resource Wastage3%

“Smaller granular means more waste”

Quality-Overall3%

“Bad quality”

Instructions/User Manual/Troubleshooting3%

“Don't let the directions fool you”

Measurement/Reading Accuracy2%

“I couldnt tell if the amount looked wrong because it was wrong or because it was broken by a hole in the middle”

Top return reasons

Leak-Proof28%

Advertised Vs Actual Product24%

Value For Money12%

Functionality-Overall8%

Contamination6%

Product Condition5%

Ease Of Use3%

Size-Overall3%

Defective Material/Parts2%

Compatibility-Overall1%

Common questions

Is ph increaser for hot tub profitable to sell on Amazon United States?: The niche generates $692K/yr across 9 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +6.5%. Flapen's verdict: Skip it (49/100).
How competitive is the ph increaser for hot tub niche?: 6 brands and 70 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in ph increaser for hot tub?: Top complaints mined from reviews: Value For Money, Leak-Proof, Ease Of Use. The return rate is 0.4%.
When does demand for ph increaser for hot tub peak?: Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the ph increaser for hot tub niche?: Listings span $7.94–$33.57; the average listing price is $17.01 (sweet spot $15–$100). The average incumbent carries 2,962 reviews — the moat a new listing must climb.