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Intex PureSpa against Coleman SaluSpa: each publishes what the other withholds

In twelve states and DC this is not a preference, because only one of them publishes the energy compliance required for sale there. Everywhere else it comes down to a warranty term, a jet count and which filter cartridge you will be buying for the next five years.

By Sawyer V., enthusiastLast updated
Air bubbles rising through blue water

Heads up: we earn a commission if you buy through the links on this page, at no extra cost to you. It never decides the ranking — here is how we pick and here is the full disclosure. Prices are checked automatically; last verified November 5, 2026.

Quick picks

Segmented before it is ranked — the right answer depends on which of these you actually are. Tap any row for the full write-up.

If you are in a state with an energy standard

Coleman publishes APSP-14 and Title 20 compliance and lists the jurisdictions where the model meets the conditions required for sale. Intex's listing makes no equivalent claim.

#ProductBest forScorePrice
1
Coleman SaluSpa Inflatable Hot Tub
Coleman SaluSpa Inflatable Hot Tub

The one most people end up with, and reasonably so. Insulated cover and wall are the specs worth paying for, because everything expensive about owning one of these is heat you paid for and then lost.

The default inflatable hot tubSeveral seasons7.6out of 10

If you want a warranty term in writing

Intex publishes a 1-Year Manufacturer Limited Warranty on the listing. The Coleman listing publishes no term at all.

#ProductBest forScorePrice
1
Intex PureSpa Inflatable Hot Tub
Intex PureSpa Inflatable Hot Tub

The direct alternative, and the built-in hard water treatment is a genuine point of difference rather than a marketing one if your fill water is hard.

Hard water, and people who already own IntexSeveral seasons7.5out of 10

The cost that follows the badge for years

Whichever you buy, you are buying its cartridge type for the life of the tub. Type S1 fits Intex, Type VI fits Bestway and Coleman, and they do not interchange.

#ProductBest forScorePrice
1
Intex Type S1 Spa Filter Cartridge, 3-Pack
Intex Type S1 Spa Filter Cartridge, 3-Pack

The genuine Type S1 in the smallest sensible quantity. A hot tub eats cartridges far faster than a pool does, and buying one at a time is how people end up running a dirty filter.

An Intex PureSpa, bought from the brand that made the tubA few weekends7.6out of 10
2
Type VI Spa Filter Cartridge for Bestway, Lay-Z-Spa and Coleman SaluSpa
Type VI Spa Filter Cartridge for Bestway, Lay-Z-Spa and Coleman SaluSpa

Type VI is the Bestway family's cartridge and it is not interchangeable with Type S1. Getting this wrong is the most common spa parts mistake there is, and the two look similar enough to make it easy.

Anything that is not an Intex — the other half of the marketA few weekends8.0out of 10

What neither of them tells you

Neither listing publishes a water capacity in gallons, which is the number every chemical dose is calculated against. Test strips are how you find out whether your dosing worked.

#ProductBest forScorePrice
1
AquaChek Spa 6-in-1 Test Strips
AquaChek Spa 6-in-1 Test Strips

The one strip that covers both spa sanitizers. If you cannot see whether you are at the CDC's published hot tub numbers, nothing else on this page helps.

Reading bromine and chlorine on the same stripA few weekends8.7out of 10

The short version

  • In twelve states and DC, Coleman publishes a compliance claim and Intex does not. APSP-14 and Title 20, with the jurisdictions named on the listing.
  • Each publishes what the other withholds. Intex gives a warranty term; Coleman gives a maximum temperature, a jet count and an efficiency figure.
  • Neither publishes gallons. The number every chemical dose is calculated against is absent from both listings.
  • You are buying a filter type for years. Type S1 for Intex, Type VI for Coleman, and they do not interchange.

If you live in California, Hawaii, Oregon, Rhode Island, Massachusetts, New Jersey, Maine, New York, Nevada, Maryland, Washington or DC, buy the Coleman — it is the one whose listing publishes the energy compliance required for sale in those jurisdictions. Everywhere else, the decision comes down to whether a published warranty term matters more to you than a published efficiency claim, because that is genuinely the shape of the trade.

This site has brand head-to-heads for pools — Intex against Bestway, Bestway against Summer Waves — and has never had one for the tubs, which in November are the half of the backyard actually in use.

The one that decides it in twelve states

Most comparisons of these two are about jets and headrests. The thing that actually removes the choice for a large share of American buyers is on the Coleman listing and almost nobody mentions it:

APSP-14 is the industry standard for portable spa energy efficiency; Title 20 is California’s appliance efficiency regulation, which several other states have followed. The Intex PureSpa listing makes no compliance claim of any kind.

Be precise about what that does and does not mean. It does not mean the Intex is illegal, or that it fails a standard — its listing simply does not address the question, and we have no way to test it. What it does mean is that one seller has told you where its model may be sold and the other has not, and if you are in one of those twelve jurisdictions that is a material difference in what you can rely on.

What each listing publishes, side by side

Published specifications for the Intex PureSpa 28429EP and the Coleman SaluSpa Miami 90557E, from their current listings.
Intex PureSpa 28429EPColeman SaluSpa Miami 90557E
Size77 in x 28 in71 in x 26 in
Stated capacity4 person"2-4 Person" in the title, "up to 4 people" in the bullets
Jet countNot published120 AirJets
Maximum temperatureNot published104 degreesF (40 degreesC)
Energy claimNone publishedInsulated walls and cover "up to 40% more energy-efficient"
ComplianceNone publishedAPSP-14 and Title 20, with 12 states and DC named
Warranty term1-Year Manufacturer Limited WarrantyNone published
HeaterPTC (Positive Temperature Coefficient)Freeze Shield automatic heating function
ConstructionFiber-Tech beamMaxHold beams, 3-layer Tritech outer
Water capacityNot publishedNot published
Filter typeType S1Type VI
Notable extrasHard water treatment, 2 headrests, LED lightChemConnect dispenser, 40-day power-saving timer
Published specifications for the Intex PureSpa 28429EP and the Coleman SaluSpa Miami 90557E, from their current listings.

Read the “Not published” cells rather than the filled ones and the pattern is the useful part. Intex withholds the jet count, the maximum temperature and any efficiency claim. Coleman withholds the warranty term. Both withhold the gallons.

The warranty gap, in the direction you would not guess

Intex publishes a 1-Year Manufacturer Limited Warranty on the face of its listing. The Coleman listing publishes nothing — not a shorter term, not a longer one, nothing.

That is worth weighing against the compliance point above, because it cuts the other way. Coleman is the brand telling you about standards and efficiency; Intex is the brand telling you what happens if the thing fails. On a product class where the common failure is the heater or the pump within the first couple of seasons, the second disclosure is not the lesser one.

Our brand page makes the general version of this argument for pools: the warranty is a line-item rather than a brand promise, and the only move that works is reading the specific term on the specific model rather than trusting the badge. The same applies here.

The cost that follows the badge for years

This is the part of the decision that outlives the purchase, and neither listing frames it as a choice at all.

Intex spas take Type S1 cartridges. Bestway, Coleman and Lay-Z-Spa take Type VI. They look alike and they do not interchange, which our spa cartridge roundup opens with because it is the most common wasted purchase in the category.

So the badge you pick today sets which cartridge you buy every few weeks for as long as you own the tub. That is a genuine ownership cost and it is worth checking availability and multipack pricing in both ranges before you decide, rather than after.

Where the two differ in use, on published features

Cold weather

Coleman publishes Freeze Shield, described as an automatic heating function that “protects pump and liner from damage due to cold weather”, and markets the tub as staying up all year. Intex publishes a PTC heater and a hard water treatment system, and says nothing about freeze protection.

For a November buyer that is the second most consequential difference on this page. Our winter hot tub guide is organized around exactly one failure — a full tub that stops heating in freezing weather can crack its own plumbing — and a published automatic function aimed at that failure is a real feature rather than a marketing word.

Water hardness

Intex publishes a built-in Hard Water Treatment System and explains the mechanism in its own copy: “hard water buildup limits water flow and reduces the life of your spa”. Coleman publishes no equivalent. If you are on hard water — and our hard water guide covers how to know — that is the Intex’s most substantive advantage.

Chemistry handling

Coleman includes a ChemConnect dispenser, published as attaching to the tub and dispersing chlorine. Intex includes two headrests and an LED light, which are comfort items rather than chemistry ones. Neither changes what the water needs, which our spa chemistry guide sets out — the CDC publishes at least 3 ppm free chlorine for hot tubs against at least 1 ppm for pools, and no dispenser alters that target.

Who should buy which

Which of the two suits which buyer, on published evidence only.
Your situationThe pickWhy
In CA, HI, OR, RI, MA, NJ, ME, NY, NV, MD, WA or DCColemanThe only one publishing the compliance required for sale there
Running it through a freezing winterColemanFreeze Shield is published and aimed at the failure that ends tubs
You want a warranty term in writingIntex1 year published; Coleman publishes none
You are on hard waterIntexBuilt-in hard water treatment, with the mechanism explained
You want the largest of the twoIntex77 x 28 in against 71 x 26 in
Electricity is your main worryColemanThe only published efficiency claim, though it is comparative
Which of the two suits which buyer, on published evidence only.

The table splits almost evenly, which is the honest outcome. These are not a good tub and a bad tub; they are two tubs that disclose different things, and the right answer depends on which disclosure matters to your situation.

What we could not check

The makers’ own sites. Intex’s spa pages render their specification, manual and FAQ tabs as empty template placeholders to anything but a browser, and bestwayusa.com returned HTTP 429 twice while we were writing this. So every figure on this page is read off the two current Amazon listings, which is this site’s standing practice when a maker page cannot be reached.

That also means some things we would have liked to compare are simply unavailable to us: neither heating rate, nor minimum ambient operating temperature, nor any error-code documentation is published anywhere we could read. If you want those before buying, the manual in the box is the only place they exist.

And we have not run either tub. Nothing here is a durability judgment, a comfort judgment or a measured efficiency comparison — it is a reading of what two sellers chose to tell you, which in a category this opaque turns out to be the most decision- useful thing available.

What to buy

Scores are our own reading of published specifications. They are not test results — we have not tested these products and we do not claim to.

Coleman SaluSpa Inflatable Hot Tub

The default inflatable hot tub

Coleman SaluSpa Inflatable Hot Tub

Coleman (Bestway)

The one most people end up with, and reasonably so. Insulated cover and wall are the specs worth paying for, because everything expensive about owning one of these is heat you paid for and then lost.

$484.99 · View on Amazon

#ad how this is funded · price as of November 5, 2026

Key specs

Capacity
4 to 6 people, depending on SKU
Size
71in or 77in round x 28in, per model
Jets
120 AirJets on the current Miami 90557E listing; the count varies by SKU
Cover
EnergySense insulated cover included
Cold weather
Freeze Shield on current models
Running cost
Not published — depends on your rate and ambient temperature

How it scoresour reading of published specs, not a test result

Build
7.5
Setup
9.0
Upkeep
6.5
Running cost
5.5
Value
8.0

Overall 7.6 / 10

What works

  • Insulated cover and wall are the features that actually govern the running cost
  • No installation, no permit conversation, no groundwork beyond a level base
  • Packs away, which matters if the yard has one usable corner
  • Widely stocked, so replacement filters and parts are easy to find

What doesn't

  • Air jets, not water jets — this is bubbles rather than massage, and people expect the latter
  • Heating is slow by design; you plan around it rather than deciding on the day
  • Filter cartridges are a frequent consumable at spa bather loads
  • Vinyl in constant hot water ages faster than the same vinyl in a pool

Skip it if: Anyone expecting hydrotherapy jets. It is a warm bubbling tub, and that is a different product from a hard-shell spa.

What it costs to run: The purchase is the small number. A hot tub is heated 24/7 rather than seasonally, so the electricity is the real commitment and it is entirely a function of your rate, your cover discipline and your climate. Nobody publishes a national figure and we will not invent one.

Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.

Specs from: Coleman SaluSpa — current Amazon listing and published specifications

Intex PureSpa Inflatable Hot Tub

Hard water, and people who already own Intex

Intex PureSpa Inflatable Hot Tub

Intex

The direct alternative, and the built-in hard water treatment is a genuine point of difference rather than a marketing one if your fill water is hard.

$688.58 · View on Amazon

#ad how this is funded · price as of November 5, 2026

Key specs

Capacity
4 people (28429EP)
Size
77in round x 28in
Water treatment
Built-in hard water treatment system
Included
Energy-efficient spa cover, 2 headrests, LED light
Jets
Bubble massage — air, not water jets
Running cost
Not published

How it scoresour reading of published specs, not a test result

Build
7.5
Setup
9.0
Upkeep
6.5
Running cost
5.5
Value
7.8

Overall 7.5 / 10

What works

  • Built-in hard water treatment is a real advantage on hard fill water
  • Insulated cover included rather than sold separately
  • Shares the Intex accessory ecosystem if you already own an Intex pool
  • Headrests and light included, which are usually add-ons elsewhere

What doesn't

  • Air bubbles rather than water jets, same as the category
  • Four people is a genuine four, not an optimistic one
  • Cartridges need changing often at spa temperatures and bather loads
  • Wattage is not published, so the running cost cannot be computed before purchase

Skip it if: Cold-climate winter use without serious attention to the cover and the ground under it. These are insulated, not immune.

What it costs to run: Same shape as the rest of the category: the electricity dwarfs the purchase over a year. The one lever you control is whether the cover goes back on every single time.

Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.

Specs from: Intex PureSpa 28429EP — current Amazon listing and published specifications

Intex Type S1 Spa Filter Cartridge, 3-Pack

An Intex PureSpa, bought from the brand that made the tub

Intex Type S1 Spa Filter Cartridge, 3-Pack

Intex

The genuine Type S1 in the smallest sensible quantity. A hot tub eats cartridges far faster than a pool does, and buying one at a time is how people end up running a dirty filter.

$20.50 · View on Amazon

$32.9838% off

#ad how this is funded · price as of November 5, 2026

Key specs

Type
Type S1, published
Fits
Published for Intex PureSpa inflatable hot tubs
Quantity
3-pack, published
Media
Pleated paper, published as Dacron paper on Intex's heavy-duty variant
Micron rating
Not published — no spa cartridge in this category publishes one
Washable
Rinseable between changes; not indefinitely reusable

How it scoresour reading of published specs, not a test result

Sizing fit
9.5
Running cost
6.0
Maintenance
7.5
Build
7.0
Value
7.0

Overall 7.6 / 10

What works

  • Genuine part, so the fit in the Intex housing is not a question
  • Three at a time matches how fast a tub actually loads a cartridge
  • Sold alongside Intex's own heavy-duty Dacron version if you want to step up
  • The cheapest way to stop running a hot tub on a gray filter, which is the single most common cause of cloudy spa water

What doesn't

  • No micron rating published, which is true of the whole category and means filtration cannot be compared at all
  • Three cartridges is a few weeks of heavy use, not a season
  • Paper media degrades with every rinse, so "washable" has a short ceiling
  • Costs more per cartridge than the generic multipacks that fit the same housing

Skip it if: Running a tub used by a crowd. At four people in 200 gallons the cartridge is the bottleneck, and no cartridge fixes a bather load problem — that is a water-change question.

What it costs to run: Cost per cartridge is the number to compare, not pack price. Genuine Intex runs well above the generic six and twelve packs; whether that is worth it is a fit-confidence question, because nothing about filtration is published either way.

A few weekends: Fine for a heatwave and a toddler. Treat it as consumable, not as a pool — it will not survive a winter in the yard.

Type VI Spa Filter Cartridge for Bestway, Lay-Z-Spa and Coleman SaluSpa

Anything that is not an Intex — the other half of the market

Type VI Spa Filter Cartridge for Bestway, Lay-Z-Spa and Coleman SaluSpa

Generic

Type VI is the Bestway family's cartridge and it is not interchangeable with Type S1. Getting this wrong is the most common spa parts mistake there is, and the two look similar enough to make it easy.

$25.99 · View on Amazon

#ad how this is funded · price as of November 5, 2026

Key specs

Type
Type VI, published
Fits
Published for Bestway, Lay-Z-Spa and Coleman SaluSpa inflatable hot tubs
Does NOT fit
Intex PureSpa, which uses Type S1 — different housing, different cartridge
Quantity
Sold from 2-packs up to 12-packs across listings
Media
Pleated paper
Micron rating
Not published

How it scoresour reading of published specs, not a test result

Sizing fit
8.5
Running cost
8.5
Maintenance
7.5
Build
6.5
Value
8.5

Overall 8.0 / 10

What works

  • Covers the entire Bestway/Coleman/Lay-Z-Spa family with one part number
  • Widely stocked in several pack sizes, so cost per cartridge can be optimized
  • Cheap enough that replacing rather than rinsing is a realistic habit
  • The listing names the three brand families explicitly rather than claiming universal fit

What doesn't

  • No micron rating published, same as every cartridge in this category
  • Easily confused with Type S1 — they are not interchangeable and the tub will not tell you
  • Third-party only in most pack sizes; Bestway's own part is harder to find in quantity
  • Paper media with the usual short rinse ceiling

Skip it if: Fitting an Intex tub. If your hot tub is a PureSpa this is the wrong cartridge, and no amount of pushing will make it seal. Check the tub brand before the pack size.

What it costs to run: Same arithmetic as the Intex side: divide by count. Pack sizes here run from 2 to 12 at headline prices that look similar, so cost per cartridge varies by more than three times across the listings.

A few weekends: Fine for a heatwave and a toddler. Treat it as consumable, not as a pool — it will not survive a winter in the yard.

AquaChek Spa 6-in-1 Test Strips

Reading bromine and chlorine on the same strip

AquaChek Spa 6-in-1 Test Strips

AquaChek

The one strip that covers both spa sanitizers. If you cannot see whether you are at the CDC's published hot tub numbers, nothing else on this page helps.

$14.91 · View on Amazon

#ad how this is funded · price as of November 5, 2026

Key specs

Reads
Total bromine, total chlorine, free chlorine, pH, total alkalinity and total hardness, published
Why 6-in-1
Covers both spa sanitizers, so it works whichever you run
Format
Dip-and-read strips
Bromine-only alternative
AquaChek Red 4-Way reads bromine, pH, alkalinity and hardness at a lower price
Accuracy
Strips read a band, not a figure — see the limitation note on this page

How it scoresour reading of published specs, not a test result

Accuracy
6.5
Ease
9.5
Coverage
9.0
Cost per use
9.5
Value
9.0

Overall 8.7 / 10

What works

  • Reads both bromine and chlorine, so one tub of strips covers a sanitizer switch
  • Includes free chlorine separately from total, which most cheap spa strips do not
  • From the brand this site already uses for pool strips, so the color chart will look familiar
  • Cheap enough that testing before every soak is realistic

What doesn't

  • A strip reads a color band, not a number, and the CDC hot tub targets are tighter than the pool ones
  • Strips degrade fast in humidity, and a hot tub lid is the most humid place in the yard
  • No cyanuric acid reading, which matters if you ever put stabilized chlorine in a spa
  • Six pads on one strip means six things to read before the colors develop differently

Skip it if: Settling an argument. If your tub keeps causing problems and the strips say fine, you need a drop-count reading rather than a better strip.

What it costs to run: Pennies per test and the cheapest item on this page. The only thing it costs you is the habit; strips in a damp cabinet read wrong rather than failing, which is worse than not testing.

A few weekends: Fine for a heatwave and a toddler. Treat it as consumable, not as a pool — it will not survive a winter in the yard.

Specs from: CDC — preventing hot tub rash, published chlorine, bromine and pH ranges for hot tubs

Questions people actually ask

Is Intex or Coleman better for an inflatable hot tub?
It depends where you live, and that is not a throwaway answer. Coleman publishes that its current Miami model is APSP-14 and Title 20 compliant and names the states where that compliance is required for sale — CA, HI, OR, RI, MA, NJ, ME, NY, NV, MD, WA and DC. The Intex listing makes no equivalent claim. In those twelve states plus DC the comparison is largely settled before you reach the features.
Which inflatable hot tub has a better warranty?
Intex, on the published evidence, and by default rather than by margin. The Intex listing states a 1-Year Manufacturer Limited Warranty. The Coleman listing publishes no warranty term at all. That does not mean Coleman offers none — it means the term is not where the buyer sees it, which is the same gap we found across the pool brands, where the warranty is a line-item rather than a brand promise.
How many jets does each one have?
Coleman publishes 120 AirJets on the current Miami 90557E listing, and the count varies by SKU across the SaluSpa range. Intex publishes no jet count for the PureSpa 28429EP at all, describing it as “Bubble Massage” with a PTC heater. Both are air-bubble systems rather than water jets, which matters more than the number: an air system is a different sensation from the water jets on a hard-shell spa, and our inflatable hot tub roundup covers what that means in practice.
Are they the same size?
No. Intex publishes 77 in x 28 in and Coleman publishes 71 in x 26 in for the Miami, so the Intex is six inches wider and two inches taller. Coleman’s own listing is also internally inconsistent about people: the title says “2-4 Person” while the first bullet says “up to 4 people”. Intex says 4 person throughout.
Which is cheaper to run?
Coleman publishes an efficiency claim and Intex does not, which is as far as the published evidence goes. Coleman states that insulated walls and cover are “up to 40% more energy-efficient ... compared to similar hot tubs” — a comparative claim against an unnamed baseline. Neither publishes a running cost, and our running-cost guide explains why we will not print one either: it depends on your electricity rate and your ambient temperature, and the arithmetic needs both.

Sources