X-Series Swim Spas by Endless Pools

The X-Series is the cross-training-focused mid tier of Endless Pools, the swim-spa specialist brand within the Watkins Wellness family alongside Hot Spring Spas and Caldera Spas. The series is built around SwimCross® Technology, Endless Pools' variable-resistance jetted swim current, paired with a fitness-and-cross-training identity and (on the X2000 flagship) a 2-Zone Temperature Control dual-tank architecture. The X-Series is engineered for households who treat the swim spa as a fitness platform, variable-resistance swimming, water-based aerobic training, and (on the X2000) a simultaneous fitness front zone plus a hot-tub-temperature recovery zone at the back. Two models, X500, X2000, span 15-foot compact through 20-foot dual-temperature flagship. The X-Series is sold and serviced through Seven Seas Pools & Spas.

X-Series at a Glance

Tier: Cross-training-focused mid tier, the fitness-positioned swim-spa series within Endless Pools
Models in series: 2 (X500, X2000)
Length range: 15' (X500) to 20' (X2000)
Signature current: SwimCross® Technology, a smooth, adjustable jetted swim current with variable-resistance cross-training emphasis
Shell: Molded Acrylic

Heater: 4,000 W / 230 V
Electrical service: 230 V / 30 amp standard, 230 V / 60 amp optional, with included GFCI sub-panel (per X500)
Dual-temperature flagship: X2000, 5' spa zone + 15' swim zone running simultaneously at independent temperatures (fitness front, recovery back)
Identity: A total-body wellness platform, an all-in-one fitness-focused swim spa with SwimCross® at its center

What makes the X-Series distinct from the E-Series and R-Series: the SwimCross® current platform with its cross-training emphasis, a fitness-focused marketing positioning, and the X2000 dual-temperature flagship at a different price point than the E-Series E2000.

Who the X-Series Is Built For

The X-Series is built for households who prioritize fitness and cross-training, variable-resistance swimming, water-based aerobic workouts, and (on the X2000) a dual-temperature setup that lets a fitness session and a recovery soak happen in the same shell.

Who the X-Series fits:

Fitness-first households who treat their swim spa as a workout machine rather than a recreational pool, the X-Series is built around active health goals, and the X500 is the total-body wellness platform at the entry point
Cross-training households who want variable-resistance swimming, water aerobics, and (where the buyer adds it) underwater treadmill or aquabike-style training
Dual-temperature households who want a simultaneous swim zone and spa zone at independent temperatures, the X2000 runs a fitness front swim zone and a 350-gallon hot-tub-temperature spa section at the back, simultaneously

Want a swim spa that is fitness-focused without stepping all the way up to the E-Series premium tier
Family + fitness households, the X500 is fitness-engineered first, but it remains capable for family fun, relaxation, and recreational swimming when the workout session is done

It is not the right tier if you:

Want the competitive 1:08-per-100-yard race-pace ceiling of Hydrodrive™ with up to 116 pace settings, that's the E-Series
Want the lowest entry price in the Endless Pools lineup or the smallest 12-foot footprints, see the R-Series (RecSport®)
Want the 14-gauge galvanized steel frame as a structural callout, that's E-Series construction

Need the widest model selection, the X-Series has two models. The E-Series has four
Prefer a hot-tub-only experience without swim function, Seven Seas carries Hot Spring Spas and Caldera Spas for traditional hot-tub installations

Want the X-Series swim spa experience?

Explore the X-Series with Seven Seas Pools & Spas and compare the SwimCross® current, model footprint, dual-temperature option, and installation requirements in person.

Defining Technologies

SwimCross® is the X-Series signature swim current, a smooth, adjustable jetted current that's turbulence-free, swim-in-place capable, and engineered around variable resistance for cross-training. The X500 is the compact 15-foot platform built around the SwimCross® current; the entire X-Series is positioned around active health and fitness rather than recreational lap-pace swimming. SwimCross® supports continuous swim-in-place workouts and aerobic resistance training without flip turns.

The 20-foot X2000 flagship uses a 2-Zone Temperature Control dual-tank architecture, a swim section at front and a 350-gallon spa section at back, running simultaneously at independent temperatures. The practical use pattern is fitness in the front, recovery at the back: stay active in fitness-temperature water, then move to the back spa zone and relax at hot-tub temperature. Total water capacity is 2,350 gallons (2,000 swim + 350 spa). This is the swim-spa equivalent of a workout pool and a hot tub installed in the same footprint at the same time. The E-Series E2000 uses the same dual-temperature architecture paired with Hydrodrive™ instead of SwimCross®.

Both X-Series models include contoured spa seats with hydrotherapy jets for total-body relaxation. The X2000 adds three ergonomic seats in the dedicated 350-gallon spa zone at the back, accessible whenever you steps out of the swim zone.

Both X-Series models ship with a 4,000 W / 230 V heater and a GFCI sub-panel sized to the spa's electrical service. The X500 runs on 230 V / 30 amp standard with a 230 V / 60 amp optional upgrade.

Models in the X-Series

The full X-Series lineup, sorted by length:

Model	Length	Width	Notable Feature	Configuration Options
X500	15'	89"	The compact 15-foot total-body fitness platform with the SwimCross® jetted current; 1,650-gal water capacity; 40" depth; 16 interior LEDs	Standard fitness configuration
X2000	20'	89"	Dual-temperature: 5' spa zone (350 gal) + 15' swim zone (2,000 gal) at independent temperatures, fitness front, recovery back; 48" depth; 2,350 gal total water capacity	Dual-temperature, 2-Zone Temperature Control

Two models, two depths (40" on the X500, 48" on the X2000), and two architectures (single-tank fitness on the X500, dual-temperature simultaneous zones on the X2000).

See if the X-Series fits your space

Review the footprint, fitness goals, dual-temperature needs, water-care cadence, and electrical plan with a Seven Seas advisor.

X-Series Compared to Other Endless Pools Series

The X-Series sits between the value-tier R-Series and the premium-tier E-Series on price and capability, with a distinct cross-training-focused identity.

X-Series vs E-Series

The E-Series is the premium tier, four models built around Hydrodrive™ Technology with up to 116 pace settings and a competitive 1:08-per-100-yard max pace, a 14-gauge galvanized steel frame, 230 V / 60 amp standard electrical service, and an optional Underwater Treadmill on every model. The E-Series flagship E2000 uses the same dual-temperature architecture as the X2000 paired with Hydrodrive™. If you want serious lap-swim pace control, a steel frame, the broadest model selection, or the treadmill option step up to the E-Series. If you want a cross-training current pattern at the X-Series price point (or the X2000 dual-temperature option without stepping all the way up to the E2000) choose the X-Series.

X-Series vs R-Series

The R-Series is the value tier, three models (R200, R220, R500) built around RecSport® Technology with a wood frame, 230 V / 30 amp standard electrical service, and a recreation-and-family positioning. R-Series footprints span 12 to 15 feet, including the 12-foot compact entries that are the smallest in the entire Endless Pools swim-spa catalog. If you want the most accessible Endless Pools entry price, a smaller compact footprint, or a more recreational positioning start at the R-Series. If you want a fitness-first identity, the SwimCross® cross-training current pattern, or the dual-temperature X2000 step up to the X-Series.

X-Series Compared to Hot Tubs

A swim spa is a different category of product from a hot tub. The X500 is a 15-foot fitness platform with 1,650 gallons of water; the X2000 is a 20-foot dual-temperature spa with 2,350 gallons across two zones. Both are substantially larger than a typical 7-foot hot tub. The X2000 is the most direct cross-shop against a hot-tub-plus-pool combination, customers can run the spa zone at hot-tub temperature 24/7 while using the swim zone for fitness sessions. Buyers who genuinely want a hot-tub-only experience at a smaller footprint, lower electrical service, and lower lifecycle water-care cost should compare against the Hot Spring Spas and Caldera Spas lineups, both Watkins Wellness sister brands focused on hydrotherapy. Seven Seas carries all three Watkins Wellness brands, visit a showroom to compare.

Ready to compare the X-Series in person?

The X-Series is sold and serviced through Seven Seas Pools & Spas. Call ahead or stop by your local showroom to confirm current showroom availability. Visiting a showroom is the fastest way to feel the SwimCross® cross-training current pattern, sit in the hydromassage seats, and (where the X2000 dual-temperature flagship is on display) experience the simultaneous swim zone and spa zone in person.

Buying Considerations for the X-Series

The X-Series ranges from 15 feet (X500) up to 20 feet (X2000). The X2000 at 20 feet is one of the larger delivery profiles in the lineup, alongside the E-Series E2000. A level reinforced concrete pad rated for the filled weight (or a deck engineered to the same load) is required, plus service clearance on at least one side for equipment access. The Seven Seas team handles a site assessment as part of the installation service.

The X500 runs on 230 V / 30 amp standard with a 230 V / 60 amp optional upgrade and a GFCI sub-panel included. Verify the X2000 service requirement at order, the dual-temperature architecture and larger water volume warrant a separate confirmation against the current product page. Seven Seas confirms the exact electrical service per configuration during the site assessment.

The X2000 at 20 feet often requires a crane drop or a clear straight-line delivery path. The Seven Seas delivery service coordinates the path-of-travel, gate-clearance check, and crane scheduling.

The X-Series ships with a sanitization platform appropriate to its tier, confirm the exact configuration on the X500 or X2000 product page. Filter cleaning runs on a monthly cadence, see the swim spa filter care guide in the owners area.

Indoor X-Series installations are supported with proper ventilation and drainage, see the swim-spa indoor installation guide for full requirements: moisture-resistant floor structure rated for the filled weight, active humidity ventilation, an electrician-approved 230 V feed, and code-compliant drainage. The dual-temperature X2000 adds an extra evaporation factor, the spa-zone hot-tub-temperature operation evaporates water faster than a single-temperature swim zone alone.

Maintenance and Ownership

Owners benefit from the Seven Seas owners area, the post-purchase content hub covering water care, filter care, seasonal routines, and troubleshooting for swim-spa owners specifically. X-Series-specific maintenance touchpoints:

Dual-zone water care (X2000). The two zones share a sanitization platform, Seven Seas walks every X2000 owner through the per-zone cadence during the post-delivery handoff.
Filter care. Monthly cleaning of the cartridge filter, see the swim spa filter care guide.
Drain and refill. Swim-spa drain-and-refill intervals are typically every 3-6 months depending on use intensity. The X2000's 2,350-gallon dual-zone volume is among the largest in the Endless Pools lineup, drain-and-refill is a longer process, and Seven Seas walks every owner through the schedule during the post-delivery handoff.
Winterizing. The swim-spa winterizing guide covers cold-weather considerations for households who choose to drain seasonally.
Cover care. Standard cover ships with the spa; cover-lifter accessories vary by model.

For ongoing professional care, Seven Seas offers the swim spa water care service, periodic drain-and-refill, balance check, and filter replacement carried out by trained technicians.

Frequently Asked Questions

Three things together: the SwimCross® swim-current platform with its cross-training, variable-resistance emphasis; the explicit fitness-and-wellness identity, the X-Series is built around active health goals rather than recreational lap swimming; and the dual-temperature X2000 flagship that pairs a fitness front swim zone with a hot-tub-temperature recovery zone at the back.

Two: X500 (15' compact fitness) and X2000 (20' dual-temperature flagship).

Both are adjustable swim currents. SwimCross® is the X-Series cross-training current, smooth and adjustable with a variable-resistance fitness emphasis. Hydrodrive™ is the E-Series premium current, exceptionally smooth across all skill levels, with up to 116 pace settings and a competitive 1:08-per-100-yard max pace. The two are tuned for different swimming styles, SwimCross® for cross-training, Hydrodrive™ for serious lap-swim adjustability.

The X2000 uses a 2-Zone Temperature Control dual-tank architecture, a 5-foot spa zone (350 gallons) at hot-tub temperature and a 15-foot swim zone (2,000 gallons) at fitness temperature, running simultaneously through a divided tank. Bathers swim or do water-based workouts in the front swim zone, then move to the back spa zone for hot-tub-temperature recovery. Total water capacity is 2,350 gallons.

Both are 20-foot dual-temperature swim spas with a 2-Zone Temperature Control architecture. The E2000 pairs the dual-temperature setup with Hydrodrive™, 116 pace settings, 1:08-per-100-yard max pace, swim or exercise in temperate 85-degree water up front and unwind at 104 degrees in the spa zone at the back. The X2000 pairs the same architecture with SwimCross®, variable-resistance cross-training, fitness front and recovery back. Both share the dual-temperature concept; they differ on the swim-current platform and on tier positioning.

The X500 runs on 230 V / 30 amp standard with a 230 V / 60 amp optional upgrade and a GFCI sub-panel included. Confirm the X2000 service requirement at order, the dual-temperature architecture and larger water volume warrant a separate confirmation against the current product product page at the time of purchase. Seven Seas confirms the exact electrical service per configuration during the site assessment.

The Endless Pools lineup is engineered against APSP 14 and CEC standards. Seven Seas confirms the per-model certification status at the time of order, energy-efficiency certifications can shift with manufacturer updates, and the X500 and X2000 product pages are the source of truth for the current configuration.

Yes, with proper ventilation and drainage. Indoor swim-spa installations require a moisture-resistant floor structure rated for the filled weight, active humidity ventilation, an electrician-approved 230 V feed, and code-compliant drainage. See the swim-spa indoor installation guide for full requirements. The dual-temperature X2000 runs the spa zone at hot-tub temperature continuously, indoor installs of the X2000 should plan for higher humidity output than a single-temperature swim zone alone.

The X-Series is the cross-training-focused mid tier with the SwimCross® current and a fitness positioning. The E-Series is the premium tier with the Hydrodrive™ current, race-pace ceiling, optional Underwater Treadmill on every model, four-model lineup, and a galvanized steel frame. The R-Series is the value tier with the RecSport® current, wood frame, 30-amp standard electrical, smaller 12-foot compact footprints, and a recreation-and-family positioning.

Endless Pools does not publish a single consolidated warranty page on its manufacturer site, coverage terms appear on individual product pages and warranty documents at the time of order. Seven Seas walks every X-Series buyer through the current warranty document for the specific model and configuration at the time of sale and processes warranty claims locally for spas sold from our locations.

Endless Pools is headquartered at 1601 Dutton Mill Road, Aston, Pennsylvania, part of Watkins Wellness, a MASCO company. The Watkins Wellness parent is based in Vista, California, where sister brands Hot Spring Spas and Caldera Spas are also manufactured.

Where to See the X-Series in Person

The X-Series is sold and serviced through Seven Seas Pools & Spas. Call or stop by your local location to see which X-Series models are currently on display and to book a private wet-test soak appointment, visiting a showroom is the fastest way to feel the SwimCross® cross-training current pattern, sit in the hydromassage seats, and (where the X2000 dual-temperature flagship is on display) experience the simultaneous swim zone and spa zone in person. If you're cross-shopping the X2000 against the E2000 can compare both 20-foot dual-temperature flagships side-by-side when both are on the floor, same architecture, different swim-current platforms. Cross-brand cross-customers can also compare against Hot Spring Spas and Caldera Spas hot tubs during the same visit.

Find your Nearest Showroom

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Who the X-Series fits:

It is not the right tier if you:

SwimCross® Technology

2-Zone Temperature Control (X2000)

Hydromassage Seats with Hydrotherapy Jets

4,000 W / 230 V Heater + GFCI Sub-Panel

See if the X-Series fits your space

Site Requirements

Electrical Service

Delivery

Water Care

Indoor Installation

What Defines the X-Series Within the Endless Pools Lineup?

How Many Models Are in the X-Series?

What's the Difference Between SwimCross® and Hydrodrive™?

How Does the X2000 Dual-Temperature Setup Work?

How Does the X2000 Compare to the E2000?

What Electrical Service Does an X-Series Swim Spa Need?

Is the X-Series Certified for Energy Efficiency?

Can the X-Series Be Installed Indoors?

How Does the X-Series Compare to the E-Series and R-Series?

What's the X-Series Warranty?

Where Are X-Series Swim Spas Made?

Where to See the X-Series in Person

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Models in the X-Series

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