Hot Tub Filter
PassHot Tub Filter scores 75 out of 100, a Pass. Shoppers spend an estimated $2.0M a year here, search demand grew +18.0% this quarter, and an estimated 1.1% of orders come back.
- Flapen Score
- 75 / 100Top 2% of 8,839 Patio, Lawn & Garden niches · +19 vs the category median of 5675
- Market size
- $2.0M/yr638K searches / yr
- 90-day growth
- +18.0%search demand this quarter
- Competition
- 27%top-5 click share · 33 brands · 61 sellers
Flapen Score
Hot Tub Filter against its category
The dotted line is the Patio, Lawn & Garden average. Past it, Hot Tub Filter is stronger. Inside it, weaker.
Market
The Hot Tub Filter market on Amazon at a glance
Shoppers on Amazon United States searched for Hot Tub Filter 638K times last year and spent an estimated $2.0M. The top 5 brands take 50% of clicks. Flapen scores it 75 out of 100, a Pass.
01 · Demand
An estimated 9.3% of those searches ended in a purchase.
Shoppers searched for this 638K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 9.3% of those searches ended in a purchase. Searches in the last 90 days moved +18.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $2.0M a year.
- Searches, last 12 months
- 638K
- Growth, 90 days vs prior 90
- +18.0%
- Conversion, latest week
- 9.3%
- Market size, estimated
- $2.0Ma year
- Peak month
- May1.6× the quietest month
- Top search term
- hot tub filter272K searches a year
02 · Price
A sale here is worth $33.28.
Listings sell for $33.28 on average, from $7.93 to $72.26. Amazon reports units sold in ranges. This niche sold 60K to 80K a year. The average listing sells 500 to 750 of them. At $33.28 that is $17K to $25K a year per listing.
- Average price
- $33.28inside the $15 to $100 sweet spot
- Price range
- $7.93–$72.26
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 60K–80K
- Units per listing a year
- 500–750
- Revenue per listing a year
- $17K–$25K
- Returns
- 1.1%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
97% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #169 within Filters & Filter Media. It carries 962 reviews at 4.69 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 97%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #169in Filters & Filter Media
- Average rating
- 4.69 starsAmazon United States average 4.42 stars
- Average reviews
- 962per listing
- Listings tracked
- 71
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 44 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 44 months
Products
Top Hot Tub Filter products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 24, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Macaberry Type Hot Tub Spa Filter Replacement Compatible with Lay-Z-Spa Coleman SaluSpa 90352E 58323 Inflatable Hot Tub Swimming Pool Pump Filter Type Cartridge 12 Pack
- Price
- $29.80
- Rating
- 4.7/5
- Reviews
- 1,991
- Age
- 4y ago

POOLPURE PRB25-IN Hot Tub Filter Replace Unicel C-4326 Guardian 413-106 Filbur FC-2375 FC-2370 3005845 17-2327 100586 33521 25392 817-2500 5X13 Drop in Spa Filter 2 Pack
- Price
- $39.88
- Rating
- 4.8/5
- Reviews
- 2,311
- Age
- 7y ago

Volca Spares Hot Tub Filter Cartridge Size VI for Bestway Lay-Z-Spa Coleman SaluSpa 90352E 58323 6 Pack
- Price
- $24.69
- Rating
- 4.5/5
- Reviews
- 3,639
- Age
- 5y ago

Cryspool 04072 Filter Compatible with PRB25-IN Hot Tub Filter C-4326 FC-2375 3005845 R172327 R173429 33521 25392 817-2500 5X13 Drop in Spa Filter 2 Pack
- Price
- $34.69
- Rating
- 4.8/5
- Reviews
- 824
- Age
- 4y ago

PACETAP 1 1/2 SAE Thread Screw in Spa Hot Tub Filter Replacement 2 Pack Compatible with Pleatco PWW50P3 for Unicel 6CH-940 for Filbur FC-0359 for Waterways 817-0050 for Viking spa Filter
- Price
- $36.61
- Rating
- 4.6/5
- Reviews
- 381
- Age
- 4y ago
Trending
estimated 90-day click momentum
LOIOLFIL Type VI Spa Filter Replaces for saluspa hot tub Filters Lay-Z-Spa Coleman SaluSpa 90352E 58323E 58323 Swimming Pool Pump Hot Tub Filter 12 Pack
- Price
- $26.66
- Rating
- 4.7/5
- Reviews
- 285
- Age
- 2y ago

Chryseos Spa Filter Compatible with 6CH-940 FC-0359 PWW50P3 (1 1/2 Coarse Thread) 817-0050 25252 03FIL1400 SAE Thread 45 sq.ft. 2 Pack
- Price
- $31.19
- Rating
- 4.7/5
- Reviews
- 148
- Age
- 2y ago

Chryseos Spa Filter Compatible with PRB25-IN C-4326 FC-2375 R173429 8172500 5X13 Drop in Spa Filter 25 sq. ft. 2 Pack
- Price
- $26.41
- Rating
- 4.6/5
- Reviews
- 155
- Age
- 2y ago

AmiBron PWK30 Hot Springs Spa Filters Compatible for Watkins 31489 Unicel C-6430 Filbur FC-3915 P/N0969601 73178 73250 71825 30 sq.ft.Hot Tub Filter 3 Pack
- Price
- $47.86
- Rating
- 4.8/5
- Reviews
- 273
- Age
- 2y ago

POOLPURE PRB25-IN Hot Tub Filter Replace Unicel C-4326 Guardian 413-106 Filbur FC-2375 FC-2370 3005845 17-2327 100586 33521 25392 817-2500 5X13 Drop in Spa Filter 1 Pack
- Price
- $19.80
- Rating
- 4.7/5
- Reviews
- 1,462
- Age
- 7y ago
Newest
by launch date
LYJHKJ Type VI Inflatable Hot Tub Filters Cartridge and SPA Filters Replacements Compatible with Coleman Saluspa 90352E 58323 90427E Lay-Z-Spa Hot Tub Filter Cartridge 4 Pack
- Price
- $15.69
- Rating
- 4.5/5
- Reviews
- 130
- Age
- 1y ago

LOIOLFIL Type VI Spa Filter Replaces for saluspa hot tub Filters Lay-Z-Spa Coleman SaluSpa 90352E 58323E 58323 Swimming Pool Pump Hot Tub Filter 12 Pack
- Price
- $26.66
- Rating
- 4.7/5
- Reviews
- 285
- Age
- 2y ago

AmiBron PWK30 Hot Springs Spa Filters Compatible for Watkins 31489 Unicel C-6430 Filbur FC-3915 P/N0969601 73178 73250 71825 30 sq.ft.Hot Tub Filter 3 Pack
- Price
- $47.86
- Rating
- 4.8/5
- Reviews
- 273
- Age
- 2y ago

6CH-940 Spa Filter Cartridge Replacement for Unicel Pleatco PWW50P3 Filbur FC-0359 Aber 03FIL1400 Waterway 817-0050 Front Access Skimmer Viking Pool Hot Tub Filter Screw SAE Thread Filter 2 Pack
- Price
- $31.76
- Rating
- 4.4/5
- Reviews
- 242
- Age
- 2y ago

Chryseos Spa Filter Compatible with 6CH-940 FC-0359 PWW50P3 (1 1/2 Coarse Thread) 817-0050 25252 03FIL1400 SAE Thread 45 sq.ft. 2 Pack
- Price
- $31.19
- Rating
- 4.7/5
- Reviews
- 148
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 27% of clicks, no more. An open shelf where new products get seen.
Brands
33 falling
Sellers
61
Est. top-5 brand share
50%
Top 20: 93%
Est. top-5 click share
27%
Top 20: 62%
Open market
45%
- POOLPURE21%
- Macaberry9%
- Cryspool7%
- Wowreed6%
- Beckacher6%
- TOREAD5%
Demand
Hot Tub Filter search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.6×
Search terms
Top Hot Tub Filter search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- hot tub filter272K/yr
- hot tub filters68K/yr
- spa filters replacements for hot tub58K/yr
- spa filter72K/yr
- hot tub filters replacements54K/yr
- spa filters27K/yr
- spa filters for hot tub8K/yr
- jacuzzi filter13K/yr
- hot tub filters replacements buy again5K/yr
- filter for hot tub7K/yr
Reviews and returns
What reviews say buyers love and hate about Hot Tub Filter
We read the reviews and the return reasons for every product selling here.
“Didn't fit”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Hot Tub Filter questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









