Cal Spas vs Master Spas hot tubs

Best known for: one maker for the whole backyard (Cal Spas) and full foam, clamped manifold plumbing (Master Spas). Cal Spas lists 57 hot tubs for 3 to 11 people, Master Spas 29 hot tubs for 3 to 8 people. Master Spas prices start at $7,295 (reported prices and list prices); Cal Spas prices come from a dealer.

Cal Spas Aloha PZ-614L hot tub

Cal Spas

Shown: Aloha PZ-614L

A big Pomona factory that packs more jets, horsepower and options into a tub for the money, builds fast, and can sell you the grill island and fire pit too.

Price on request

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Master Spas LSX 850 hot tub

Master Spas

Shown: LSX 850

A big Indiana factory that builds all of its hot tubs in the USA, puts Michael Phelps's name on its flagship, and fits a mineral cartridge to every model.

From $7,295

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How they differ

MeasureCal SpasMaster Spas
PricePrice on request$7,295 to $21,999 Reported prices and list prices (MSRP)
Lineup57 hot tubs in 7 series29 hot tubs in 5 series
Seats3 to 113 to 8
With a lounger32 of 57 models17 of 29 models
Plugs into a regular outlet5 models5 models
Known for
  • One maker for the whole backyard
  • More jets and horsepower per dollar
  • ATS seat with its own pump
More
  • Full foam, clamped manifold plumbing
  • Built in its own Indiana plant
  • Copper-zinc mineral filter standard
More
Build checks
  • Partly Self-supporting shell
  • Partly Clamped plumbing
  • Yes Manifold-fed jets
  • Partly Standard parts
More
  • Yes Self-supporting shell
  • Yes Clamped plumbing
  • Yes Manifold-fed jets
  • Yes Standard parts
More
Shell warrantyUp to 10 yearsUp to 10 years
Owners like
  • Strong jets
  • Good value for features
  • Strong sales and installation ratings
  • Good local dealers earn praise
Owners complain about
  • Warranty claims denied or deflected
  • Repeat pump and board failures
More
  • Slow dealer-handled warranty repairs
  • Control panel and pump failures
More
Built inPomona, CaliforniaFort Wayne, Indiana

Which lines compete? Tier by tier.

Each maker sorts its own series from entry to flagship; we group them the same way so you can price like against like.

TierCal SpasMaster Spas
Value
  • Patio5 models · 3–6 seats
  • Patio Plus12 models · 3–6 seats
  • Getaway Spas5 models · 3–5 seats · from $7,295
  • LH Series5 models · 3–7 seats · from $9,695
Mid-range
  • Escape13 models · 5–6 seats
  • Escape Plus4 models · 6 seats
  • Escape X-Series13 models · 5–6 seats
  • Clarity Spas7 models · 5–7 seats · from $11,999
Premium
  • Deck2 models · 6–11 seats
  • Platinum8 models · 6 seats
LuxuryNo Cal Spas line at this tier

Which suits whom?

Cal Spas, if you want

  • One maker for the whole backyard
  • A lounger (32 models against 17)
  • Room for 11

Master Spas, if you want

  • Full foam, clamped manifold plumbing

Fit decides more than any figure here. Sit in both in the seat you would use most (dry is fine), feel the jets on a running display tub with the back of your hand, and read both warranty cards before you sign.

What’s a good deal on either?

Pick a brand. We send you the price range, then connect you with one dealer near you for it.

The details

Keeping it hot: standby power and cost2

Standby is what a tub draws to hold its heat with the cover on and nobody in it. California tests it for every spa sold in the state. At the US average 18.19¢ per kWh (January to July 2026), the middle Cal Spas model costs about $29 a month to keep hot and the middle Master Spas about $25 a month. In watts: 218 W (39 filings) and 191.5 W (28). Your bill also depends on your climate, how hot you keep it and how often the cover is off.

Median standby watts by seat count
SeatsCal SpasMaster Spas
3157 W148 W
4157 W169.5 W
5242 W190.5 W
6218 W198 W
Complaint records2

Cal Spas. Better Business Bureau grade A+, 20 complaints in three years. ConsumerAffairs 2.4 of 5 from 911 reviews. No U.S. safety recall found.

Master Spas. Better Business Bureau grade A+, 20 complaints in three years. ConsumerAffairs 4.1 of 5 from 1,476 reviews. Latest U.S. recall: 2019.

Complaint counts grow with the number of tubs a company sells; how it answers them tells you more than the count.

Who owns them2

Cal Spas is privately held. Master Spas is privately held. Each company’s history: Cal Spas and Master Spas.

Every figure side by side30
MeasureCal SpasMaster Spas
Lineup
Hot tub models5729
Seats3 to 1156 of 57 models list seats3 to 8
120V plug-in models5 models5 models
PricePrice on request$9,999 to $21,999Reported prices, October 2026
Build checks
Checks cleared4 of 87 of 8
Self-supporting shellPartlyFoam is an upgrade, so the shell holds up unfoamed.YesA fiberglass-backed shell that holds its own shape and water load.
Clamped plumbingPartlyBarbed and glued joints confirmed.YesBarbed, glued and clamped on every flexible line.
Manifold-fed jetsYesManifold plumbing, listed as standard on all six hot tub series.YesManifold plumbing, so closing one jet doesn't starve the next.
Standard partsPartlyBalboa or Gecko controls and Waterway jets, but fitting your own voids coverage.YesStandard Balboa and Waterway parts that independent suppliers stock.
Compression-fitted jetsYesJet bodies bolt in with a nut and gasket, per the factory parts store.YesJet bodies are held by a gasket and a back nut, so a leaking one is resealed, not cut out.
Adjustable jetsYesAlmost every jet turns to raise or lower its pressure.YesMost jets adjust by turning the face; some are fixed.
Service networkPartlyDealers handle service, but the warranty terms are unusually strict.PartlyOne of the biggest brands, with a large dealer network, but service is harder far from a dealer.
American made?YesBuilt in Pomona, California.YesBuilt in Fort Wayne, Indiana.
Standby power
Models with a California filing39 of 5728 of 29
Median standby218 WMedian of 39 filings191.5 WMedian of 28 filings
Median standby, 6-seat models218 WMedian of 35198 WMedian of 5
Lowest standby model157 WKona Plus PPZ-533L134 WS6
Jets and pumps
Jets per model14 to 94Most jets: LaJolla PL-894L16 to 72Most jets: LSX 900
Jet pumps per model1 to 31 to 3
Warranty
Shell structure, top series10 yearsPlatinum, Escape, Escape X-Series and others10 yearsMichael Phelps Legend Series and Twilight Series
Equipment, top series5 years5 years
Plumbing, top series5 years5 years
Shell structure, entry series5 yearsPatio and Patio Plus3 yearsLH Series
Company
Built inPomona, CaliforniaFort Wayne, Indiana
Founded1978Pomona, California1996Fort Wayne, Indiana
OwnerPrivately heldPrivately held
Records
BBB ratingA+AccreditedA+Accredited
BBB complaints, 3 years2020
ConsumerAffairs2.4 of 5911 reviews4.1 of 51,476 reviews
U.S. safety recallsNone foundCPSC recall search1 recallLatest 2019
Model against model1

No manufacturer pays us. How we make money

Common questions

Is Cal Spas better than Master Spas?

Neither is better for everyone. Cal Spas suits you if you want a lounger (32 models against 17) and room for 11. Sit in both before you choose; dry is fine.

Which costs less, Cal Spas or Master Spas?

Master Spas prices run $7,295 to $21,999 (reported prices and list prices). Cal Spas doesn't post prices we can publish, so a dealer quotes them. Compare like with like: the lines that compete tier by tier are listed on this page.

Are Cal Spas and Master Spas made by the same company?

No. Each is a separate, privately held company.

Where are Cal Spas and Master Spas hot tubs made?

Cal Spas builds in Pomona, California. Master Spas builds in Fort Wayne, Indiana.

Sources

11
  1. California Energy Commission appliance database (spas) cacertappliances.energy.ca.govstandby watts for Cal Spas and Master Spas models
  2. Cal Spas warranty calspas.comPlatinum, Escape, Escape X-Series and others warranty terms
  3. Better Business Bureau: Cal Spas bbb.org · checked September 2026rating and complaint count
  4. ConsumerAffairs: Cal Spas consumeraffairs.com · checked September 2026owner rating
  5. Ownership record: Cal Spas calspas.comPrivately held
  6. Master Spas warranty masterspascdn.comMichael Phelps Legend Series and Twilight Series warranty terms
  7. Better Business Bureau: Master Spas bbb.org · checked September 2026rating and complaint count
  8. ConsumerAffairs: Master Spas consumeraffairs.com · checked September 2026owner rating
  9. CPSC recall, 2019 (Master Spas) cpsc.govrecall notice
  10. Ownership record: Master Spas pitchbook.comPrivately held
  11. CPSC recalls cpsc.govrecall search
Get the price range On a Cal Spas or a Master Spas