American Whirlpool
MX5
15′ · jet current
Price on request
Catalina Swim Spas · Catalina 600 Series
Catalina Swim Spas Monterey 15' Inground 3-Pump (C-604)
- 15′ 1″ long
- Jet current
- One temperature
- 2 seats
Price on request
No manufacturer pays us. How we make money
Room to swim. The lane, and the current you swim against.
The maker doesn't publish the open water on the Monterey 15' Inground 3-Pump (C-604). Seats, steps and the current housing take their share of the 15′ 1″, so ask the dealer for it.
The same pumps also feed the seats, so current and massage share the power.
How currents compare →Lap swimmers like 78 to 82°F and a hot tub runs 100 to 104, so you pick a compromise or change the setting and wait.
Is dual temperature worth it →
What it costs. To buy, and to keep warm.
- The swim spa
- Price on requestGet the price range →
- Keeping it warm
- No measured figure for the Monterey 15' Inground 3-Pump (C-604). A typical swim spa costs about $57 a month to keep warm.
- On top
- A concrete pad, a dedicated circuit, delivery and sometimes a crane. What those cost
Energy detail
No California listing we could match
California lists what a spa draws on standby, with the cover on. We found no listing that matches this model. No Catalina Swim Spas swim spa has one.
What owners say. About Catalina Swim Spas swim spas.
What they like
A defective unit was replaced and service was responsive
The owner of a 21-ft Catalina dual-temp swim spa wrote in 2026 (a BBB review shown on Birdeye) that the first spa was defective and was replaced, and praised the service technicians, a responsive sales team and customer service that answered calls. One owner's account; LPI replied publicly.
What they complain about
A first unit that had to be replaced
The same 2026 review says the owner's first 21-ft dual-temp unit was defective before the replacement arrived. The review gives no detail on the fault.
Trade talk of dealers dropping Catalina swim spas over leaks
In a December 2018 forum thread, two long-time regulars said dealers they knew had stopped selling Catalina swim spas after LPI bought the brand, one citing leaks and frequent quality-control problems. Secondhand, from forum regulars rather than owners (one describes seeing LPI's wholesale prices at a trade show), and years before the current spec sheets.
How it’s built. In plain words.
- Frame and shellPartly
- Fiberglass-backed acrylic over an ABS base on the dual-temp models; frame material isn't published except treated wood under inground models. Why it matters
- Getting at the equipmentYes
- Ordinary jet pumps and Balboa controls behind a marked equipment end; LPI asks for 24 in of clearance there but won't pay to open up decking. Why it matters
- Cover and lifterPartly
- An insulated locking cover is standard on Catalina models, but LPI gives no thickness, taper or section count and lists no lifter. Why it matters
These findings cover the Catalina Swim Spas swim spa line; each names the models it applies to.
The details
Every specification43 figures, each linked to where we read it
- Open swim length
- Not published
- Ask the dealer
Size
- Open swim length
- Not published
- Water depth
- Not published
Swim current
Zones and seating
Water and weight
Therapy jets
Heat and water care
Electrical
Construction
Cover and extras
Doesn’t have: circulation pump.
Electrical notes · Hardwired 240 V on a GFCI (LPI prints 220V).
Hardwired 240 V on a GFCI (LPI prints 220V). LPI's manual calls for a 4-wire 40, 50 or 60 A service depending on model, with #6/3 wire with ground (6 gauge, 4 conductor) when the panel is within 40 ft. The maker's 2023 model-options table listed 50 A for this configuration; the 2025-26 sheet says 60 A.
Cover · Pro-Fit cover: marine-grade vinyl fitted around a 20-gauge steel frame and a 1.25 lb foam…
Where Catalina Swim Spas’s own figures disagree (5) · length, width, dry weight…
Catalina Swim Spas’s own documents give two answers. Check yours against the quote before you sign.
Length
181" (15′ 1″)
whisperoutdoor.com ↗180.5" (15′ 0.5″)
catalinaswimspas.com ↗Width
89" (7′ 5″)
whisperoutdoor.com ↗90" (7′ 6″)
catalinaswimspas.com ↗Dry weight
2,900 lb
whisperoutdoor.com ↗2,800 lb
hottub.com ↗Filled weight
17,100 lb
whisperoutdoor.com ↗17,000 lb
hottub.com ↗Minimum breaker
Where these figures come from (3 Catalina Swim Spas documents)
- LPI spec and layout sheet (14' to 16' Catalina Monterey)Spec sheet · 2025 (updated April 2026) · whisperoutdoor.com ↗
- Older copy of the sheet on LPI's hottub.com storeSpec sheet · 2024; tile colors and some electrical lines differ · hottub.com ↗
- LPI spa owner's manual (22UBSM02)Owner's manual · 2023 (LPI's general spa manual, not model-specific) · catalinaswimspas.com ↗
Catalina Swim Spas on the ten things we checkCurrent, room, frame, site, running cost, service, warranty and more
Ten things that decide whether a swim spa works for you and lasts, answered for Catalina Swim Spas’s swim spas. Tap any for the detail.
Swim currentTwo or three 'river jets' (four on the Tri-Therapy), on most models fed by the seat…Partly
Catalina makes its current with 'river jets': two on 2- and 3-pump single-zone models and three on 4-pump models and every dual-temp, fed through diverters by the same jet pumps that serve the seats. The C-620 and C-621 dual-temps are the exception, with swim pumps shown feeding only the river jets. The Newporter, Malibu, Monterey and Marathon 18' and 20' sheets call the jets 8-inch and the C-630's lists the same part; the other sheets don't name the fitting. LPI publishes no flow, current width, top speed or air figures. Speed control is one two-speed pump plus single-speed ones, and Balboa's SmartSwim upgrade isn't offered on 4-pump models. Ask to see one run at full speed.
What this means, and how to check it →catalinaswimspas.com ↗whisperoutdoor.com ↗
Room to swimLPI doesn't publish this. Ask the dealerNot published
LPI gives outside sizes only: from 150 in (S-12) to 250 in (Tri-Therapy) long, 87 to 92 1/2 in wide and 45 to 66 1/2 in tall (the E-8 is a 92 1/2 in square). Seats take one end of every single-zone model and a spa section takes the far end of the dual-temps, and no model has a published open swim length or water depth. The Pool 800 Series is sold as '62″ High', but that's the cabinet, not the water.
What this means, and how to check it →whisperoutdoor.com ↗catalinaswimspas.com ↗
Frame and shellFiberglass-backed acrylic over an ABS base on the dual-temp models; frame material…Partly
LPI's dual-temp and Tri-Therapy sheets list 'Multi-Layered Fiberglass Reinforcement' and 'ABS Bottom Protection', and the Dr. Wellness sheets list multi-layer glass reinforcement, but the single-zone Catalina sheets say nothing about shell backing, frame or base. The only frame detail LPI gives is that the lower half of an inground model's frame is pressure-treated wood wrapped in polyethylene. Structure is warranted 10 years, but no warranty document says what that covers.
What this means, and how to check it →whisperoutdoor.com ↗catalinaswimspas.com ↗
Site prepLPI asks for a 6-8 in steel-reinforced concrete pad and a 60 A, 240 V circuit (two…Partly
LPI's manual calls for a level concrete pad 6 to 8 in thick, reinforced with steel and 8 in larger than the spa, footings below the frost line where ground shifts, no shims, and spreader bars whenever a swim spa is craned. The 2025-26 sheets call for 60 A on every single-zone model code and two circuits on the dual-temps, while LPI's 2023 website lists 50 A for many of the same codes, so have your electrician work from the sheet for your exact model code. Swim spa filled weights run from 13,575 lb (12.6-ft Newporter and Malibu) to 32,750 lb (21' Pool); the E-8 is 9,723 lb.
What this means, and how to check it →catalinaswimspas.com ↗whisperoutdoor.com ↗
Running costLPI doesn't publish this. Ask the dealerNot published
LPI gives no standby-energy figures, and we found no LPI listing in California's efficiency database. In 2020 LPI settled with California for $77,000 over spas sold there from 2016 to 2019 that didn't meet the efficiency standard or weren't certified, without naming models. Catalina sheets don't say what insulation is standard ('Extreme Foam Insulation' is an upgrade), while Dr. Wellness lists full foam. The patented Heat Flow Manifold and the AnyTemp heat-and-chill upgrade come with no energy data.
What this means, and how to check it →energy.ca.gov ↗cacertappliances.energy.ca.gov ↗
Dual zoneSix dual-temp models, each side with its own pack and 4 kW heater; the Tri-Therapy…Yes
The 16' C-630, 18' and 20' Marathon (C-410, C-411), 21' Marathon (C-420) and 18' and 20' Catalina Dual Temp (C-620, C-621) each run the swim side and a 4- or 6-seat spa side on separate Balboa packs with their own 4 kW heater, touch panel and 100 sq ft of filtration. That doubles the equipment and the circuits: two 240 V supplies, 60 A plus 50 or 60 A depending on which LPI document you read. The Tri-Therapy adds a 90-gallon, one-seat cold tub with a 120 V 1 HP chiller on a third supply.
What this means, and how to check it →whisperoutdoor.com ↗whisperoutdoor.com ↗
Service accessOrdinary jet pumps and Balboa controls behind a marked equipment end; LPI asks for…Yes
LPI's layout sheets mark the equipment access area: the seat end on most models, both ends on the 21' Pool and several inground model codes, and the long side plus the spa end on dual-temps. Its manual asks for 24 in of clearance on that side, 18 in elsewhere and removable deck panels on all four sides. The current runs on standard jet pumps rather than a hydraulic drive, and slice valves let a technician isolate equipment without draining. The manual also says making the spa accessible for service isn't covered by the warranty, and the pack is an LPI-coded Balboa unit ('LPIBP20').
What this means, and how to check it →whisperoutdoor.com ↗catalinaswimspas.com ↗
Warranty terms10 years on structure and 5 on shell, parts and plumbing, but labor stops at 18…Partly
The only warranty LPI publishes for its swim spas is a one-line summary on each spec sheet; nothing says what 'structure' covers, who pays travel or removal, or whether coverage transfers, and the 21' Pool and Tri-Therapy sheets carry no terms at all. LPI's own pages disagree on Dr. Wellness: the S-12 and S-16 sheets say 10 years on structure, while LPI's store blog and comparison page say 5. The manual excludes damage from installation, electrical work, cranes and site preparation, and access costs.
What this means, and how to check it →whisperoutdoor.com ↗whisperoutdoor.com ↗
Cover and lifterAn insulated locking cover is standard on Catalina models, but LPI gives no…Partly
Catalina's Pro-Fit cover is marine-grade vinyl over a 1.25 lb foam insert with a 20-gauge steel frame and locks on the skirt; LPI doesn't say how thick it is, how many sections it has, or which cover any energy test used. No cover lifter is listed as standard or optional for the swim spas. The Dr. Wellness S-12 and S-16 sheets list no cover, and the E-8 comes with a locking hard cover.
What this means, and how to check it →catalinaswimspas.com ↗whisperoutdoor.com ↗
Service and originBuilt in Tennessee and sold mainly through LPI's own stores (about 100); its…Partly
LPI builds its spas in two Johnson City, Tennessee plants and sells Catalina swim spas factory-direct through its Whisper Outdoor stores (formerly Aqua Living), which handle warranty claims in-house. Its own July 2026 article counts 20 in-house technicians, up from 8, now covering hot tubs, swim spas, golf carts, UTVs and boats nationwide, so ask who would come to you and from how far. The BBB profile for LPI's parent company logged 101 complaints in three years across all its brands (as of September 2026).
What this means, and how to check it →lpiinc.com ↗whisperoutdoor.com ↗
What Catalina Swim Spas says about itEach claim, what the documents show, and any catch
What Catalina Swim Spas leads with, where it covers the Monterey 15' Inground 3-Pump (C-604), and what the documents show.
Only Catalina Swim Spas'The Original Swim Spa', since 1980The first swim spa was Curtis's, and today's Catalina is built by LPI
What they sayCatalina calls itself 'The Original Swim Spa' and says it introduced the first swim spa in 1980; the mark is printed on its current spec sheets.
What the documents showCatalina has a long swim spa history, but its own About page says the first swim spa was built by Curtis Swim Spas, which Catalina bought in 1985. The Catalina sold today is an LPI brand built in Tennessee since LPI bought it in 2016.
Who else does itNo other brand we researched claims to have invented the swim spa.
The catch
The first swim spa was Curtis's, and today's Catalina is built by LPI. Catalina's own About page credits the first swim spa to Curtis Swim Spas, bought by Catalina in 1985, and dates Catalina to 1977. LPI bought Catalina in November 2016 and moved production from Perris, California to Tennessee; its CEO said in 2017 it kept Catalina's designs but would trim the range.
Few othersFactory-direct prices, thousands off MSRPEvery model was a third off MSRP on LPI's own store pages
What they sayLPI sells Catalina and Dr. Wellness swim spas in its own Whisper Outdoor stores and says selling factory-direct removes dealer markups of 30 to 50 percent; every store page shows a big saving against MSRP.
What the documents showSkipping a dealer can lower the price, but the saving is measured against an MSRP LPI sets itself. On September 27, 2026 every one of the 45 swim spas in LPI's store was priced 33.3 to 36.8 percent under that MSRP for cash (26.3 to 30.0 percent financed). Compare real prices across brands, not the 'savings'.
Who else does itFew swim spa makers own a national store chain; most sell through independent dealers.
Partly a catch
Every model was a third off MSRP on LPI's own store pages. The store was running a 'Red Tag Clearance Sale' ending October 5, so prices move, but the uniform 33-37 percent gap suggests the MSRP isn't a useful benchmark. LPI's sister brand Pinnacle lists the 21' Marathon Dual Temp at $30,999 against Catalina's $52,499 MSRP.
Few othersAnyTemp: heat or chill the water
What they sayLPI's AnyTemp Hot and Cold Spa System combines a heater and a water chiller so the spa can be cooled as well as heated, which LPI pitches for hot climates.
What the documents showIt's an extra-cost upgrade on every Catalina model, not standard, and LPI publishes no cooling capacity, energy use or price for it. LPI owns a 2010 patent for a spa with a water-chilling assembly (US 7,712,161, assigned to LPI in 2019).
Who else does itCooling is uncommon on swim spas; the other brands we researched that offer it do so with optional or add-on heat pumps (Master Spas' Temp+Control and PDC's TempLock, for example) rather than a heater-plus-chiller package.
Few othersInground-ready versions of seven families
What they saySeven of the 13 Catalina families come in 'inground' versions built to sit 24 in below grade, with the lower half of the frame in pressure-treated wood wrapped in polyethylene.
What the documents showA purpose-built inground model is a real option for a flush install, but its cabinet is 13 to 26 in longer than the portable version (except on the 21' Pool), the lower frame is wood below grade, and LPI's manual says making the spa accessible for service isn't covered by the warranty.
Who else does itMost makers only allow recessed installs; Catalina sells dedicated inground models.
Applies to: Freestyle, Monterey, 16'-18' Catalina, 18'-20' dual-temps, 16'-18' Pool and 21' Pool families
1 more Catalina Swim Spas selling point
Few othersBuilt in Tennessee, serviced by the factory20 technicians for five product lines across the country
What they sayLPI builds its swim spas in Johnson City, Tennessee and supports them through its own stores and in-house, factory-trained technicians rather than independent dealers.
What the documents showThe plants and store chain are real (two Johnson City plants over 444,000 sq ft; 90 to 100+ stores), but LPI's July 2026 article counts 20 in-house technicians for hot tubs, swim spas, golf carts, UTVs and boats nationwide.
Who else does itA maker-owned store and service network is unusual; most brands rely on independent dealers.
The catch
20 technicians for five product lines across the country. LPI says its technician team grew from 8 to 20; ask where the nearest technician is based and who else services the brand locally. The BBB profile for LPI's parent company logged 101 complaints in three years across all its brands (as of September 23, 2026), and a 2026 owner review describes a 21-ft dual-temp swim spa that had to be replaced.
Warranty10 yr structure · 5 yr equipment · 1.5 yr labor
Years of cover as Catalina Swim Spas publishes them. Who pays labor, travel and removal matters as much as the years, so read the card before you sign.
What the card saysOnly a one-line summary is published (structure 10, shell 5, components 5, plumbing 5, labor 18 months); no warranty document.
Only a one-line summary is published (structure 10, shell 5, components 5, plumbing 5, labor 18 months); no warranty document. LPI's manual excludes damage from improper installation, electrical work, site preparation and crane handling, and says making the spa accessible for service (for example through decking) is not covered.
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