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About Endless Pools

Endless Pools was founded by James Murdock in 1985, when the first prototype was installed for swimmers at Columbia University. The original idea came from Murdock's father's stories about swimming in irrigation canals, a swim that doesn't require a full-length lap pool. Headquarters are at 1601 Dutton Mill Road, Aston, Pennsylvania.

Endless Pools later joined Watkins Wellness™, a MASCO company, the same Vista, California-based parent that builds Hot Spring Spas and Caldera Spas. Within the Watkins Wellness portfolio, Endless Pools owns the swim-spa category, a category neither sister brand competes in. The team at Endless Pools swims, runs aquatic-fitness sessions, and trains in the spas inside the Aston headquarters daily, the engineers and product staff are firsthand users of what they build.

The Endless Pools catalog spans swim spas (E-Series, R-Series, X-Series), modular pools (EP-Series, Plus-Series, Pro-Series, SP-Series, Plunge Pools), and the Fastlane® Series retrofit current that adds an Endless Pools current to existing pools. Seven Seas's focus is on the swim-spa lineup, the three series and nine models that pair the adjustable current with a built-in spa.

What Makes Endless Pools Different

What separates Endless Pools from generic swim-spa manufacturers is the three-current-technology architecture. Most swim-spa brands offer one current type across their full lineup. Endless Pools offers three engineered systems, Hydrodrive™, RecSport®, and SwimCross®, each tuned to a different swimming style and price tier. The same brand can sell a serious lap swimmer an E500 with 31-step Hydrodrive™ adjustability and a competitive 1:08-per-100-yard max pace, sell a family the R220 as the entertaining centerpiece of the backyard, and sell a fitness-focused buyer the X500 for cross-training, all under one brand, one dealer network, one warranty framework.

Endless Pools also owns the swim-spa-vs-hot-tub distinction inside the Watkins Wellness family. Swim spas are a different category of product from hot tubs: longer (12 to 20 feet vs typical hot-tub footprints around 7 feet), heavier filled, electrically more demanding (often 60-amp service), and engineered around an adjustable swim current rather than around hydrotherapy seats alone. If you're cross-shopping the swim spa vs hot tub question are usually choosing between a one-tank multi-purpose installation (swim + spa) and a smaller, simpler hydrotherapy-only spa. Seven Seas carries both, the team can walk through the trade-offs at any showroom.
The brand's serious-swimmer credibility is anchored by its designation as the official Swim Spa Supplier of USA Swimming and the U.S. Swim Team, meaningful for if you want to know the swim current is engineered to performance-swimming standards, not just to recreational ones.

Compare Endless Pools Swim Spas

Compare the E-Series, R-Series, and X-Series at Seven Seas Pools & Spas. Call, live chat, or check with your local Seven Seas Pools & Spas showroom to see which Endless Pools swim spas are currently on display and available for wet-test appointments.

Series We Carry at Seven Seas

Seven Seas stocks all three Endless Pools swim-spa series. Each series pairs a distinct current technology with a different price tier and target use case.

E-Series

Hydrodrive™ Technology, 31 to 116 pace settings, max 1:08/100 yds, 14-gauge galvanized steel frame

Tier: Premium
Models: 4 (E500, E550, E700, E2000)

View E-Series Swim Spas

R-Series

RecSport®, multi-speed jetted current, wood frame with molded acrylic shell

Tier: Value
Models: 3 (R200, R220, R500)

View R-Series Swim Spas

X-Series

SwimCross®, variable resistance jetted current, cross-training emphasis

Tier: Mid (fitness-focused)
Models: 2 (X500, X2000)

View X-Series Swim Spas

E-Series Swim Spas, Premium Tier with Hydrodrive™

The E-Series is the premium tier, four models from a 15-foot compact (E500) up to a 20-foot dual-temperature flagship (E2000). The series is built on a 14-gauge galvanized steel frame and offers an optional Underwater Treadmill across every model. Hydrodrive™ delivers 31 pace settings on the E500 and 116 pace settings on the E550, E700, and E2000, in both cases topping out at a competitive 1:08-per-100-yard race pace. The result: a serious lap swimmer can dial in race-pace effort while a beginner can set a slow glide-paced current in the same spa. Models in the series: E500, E550, E700, E2000.

R-Series Swim Spas, Value Tier with RecSport®

The R-Series is the value tier, RecSport® delivers a smooth, adjustable jetted current built for recreational lap swimming, family fitness, and uninterrupted swims at the value-tier price point. The series is built on a wood frame with a molded acrylic shell, sized for active families, and runs on 230 V / 30 amp service standard (with 60 amp optional), a friendlier electrical install than the E-Series 60-amp standard. The R200 is the entry-tier 12-foot swim spa in the catalog. The R220 carries more jets than any other current Endless Pools swim-spa model and is positioned as the entertaining centerpiece of the lineup. Models in the series: R200, R220, R500.

X-Series Swim Spas, Mid Tier with SwimCross®

The X-Series is the cross-training-focused mid tier, SwimCross® delivers a smooth, adjustable jetted current engineered for variable-resistance training across aerobic and recovery workouts. The X-Series sits between the R-Series and E-Series on price and capability and includes the X2000 dual-temperature flagship, a 20-foot two-zone spa designed for fitness in the front swim zone and recovery in the rear hot-tub-temperature spa zone, simultaneously. Models in the series: X500, X2000.

See if an Endless Pools swim spa fits your space

Review the footprint, current technology, seating layout, water-care cadence, and electrical plan with a Seven Seas advisor.

Signature Technologies

Hydrodrive™ Technology is the E-Series signature current, engineered as a smooth, turbulence-free swim current for swimmers of all levels. The system delivers a maximum pace of 1:08 per 100 yards (1:11 per 100 meters) with 31 pace settings on the E500 and 116 pace settings on the E550, E700, and E2000, meaning a serious lap swimmer can dial in race-pace effort while a beginner can set a slow glide-paced current. Hydrodrive™ is the brand's premium swim-current platform and is exclusive to the E-Series.

RecSport® is the R-Series signature current, a smooth, adjustable jetted current engineered for family swim, kids' play, recreational lap swimming, and lighter exercise rather than for race-pace lap training. RecSport® pairs with a wood-frame chassis, lower-amp electrical service, and the value-tier price point.

SwimCross® is the X-Series signature current, the cross-training current with variable resistance, engineered for aerobic and recovery workouts. SwimCross® appears on the X500 (compact) and the X2000 (dual-temperature flagship).

The premium models in the lineup ship with UVC + CD Ozone (Dual-layer protection) as the standard sanitization platform, UV-C light sterilization paired with corona-discharge ozone, both targeting waterborne contaminants without daily manual chlorine dosing. The system appears on the E-Series flagship spa pages and on select X-Series models.

The 20-foot flagship spas in both the E-Series and X-Series, the E2000 and the X2000, use a 2-Zone Temperature Control architecture. The front swim zone runs at a temperate fitness temperature (85 °F target on the E2000) while the rear spa zone runs at hot-tub temperature (104 °F), simultaneously, through a divided tank. The result is the swim-spa equivalent of having a lap pool and a hot tub in the same footprint at the same time, fitness in the front, recovery in the back, no temperature compromise across either use case.

E-Series swim spas are built on a 14-gauge galvanized steel frame with an ABS base pan. This is one of the structural differentiators between the E-Series and the value-tier R-Series, which uses a wood frame with molded acrylic shell. Galvanized steel is engineered for premium long-term durability against moisture and weight cycling, a meaningful consideration on a 15-to-20-foot tank carrying up to ~2,400 gallons of water.

Every E-Series spa offers an Underwater Treadmill as an optional configuration installed in the swim zone. You walk or run on a submerged belt while the swim current adjusts to match pace, low-impact aquatic training for households managing joint or knee strain, or for serious athletes integrating water-walking and water-running into a training rotation. The treadmill displaces some water capacity and adds dry weight (roughly 125 pounds on the E500), but otherwise leaves swim function intact.

The Tri-Thermic Barrier System is the multi-layer thermal package used across the lineup, engineered to maintain water temperature through cold-weather operation. It appears on the R220 product page and on the E550.

Energy Efficiency and Certifications

Endless Pools models are engineered to meet APSP 14 (the Association of Pool & Spa Professionals' portable spa energy efficiency standard) and California Energy Commission (CEC) compliance, two of the principal energy-efficiency benchmarks in the U.S. swim-spa and hot-tub category. The E-Series product pages confirm both certifications, and the R500 is certified to APSP 14 and CEC standards.

The thermal package on the premium E-Series, galvanized steel frame, multi-layer insulation, and the standard cover, is engineered for year-round operation in U.S. climates. Heaters across the lineup are 4,000 W / 230 V, sized for sustained year-round heating. GFCI sub-panels ship with the spa to meet residential electrical code at install time.

Warranty Overview

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 Endless Pools buyer through the current warranty document for the specific model and configuration at the time of sale, and routes warranty claims locally for spas sold from our locations rather than handing them off to a remote vendor. Coverage scales with series tier and configuration. Ask for the latest warranty PDF when you visit a showroom, that document is the single source of truth for the spa you're considering.

Things to Know Before Buying an Endless Pools Swim Spa

A swim spa is a different installation profile from a hot tub, and the practical considerations below shape the buying decision more than the published specifications does. None of these are flaws, they're predictable elements of owning a swim spa.

Footprint is longer than a hot tub. Swim spas range from 12 feet (R200, R220) up to 20 feet (E2000, X2000). Confirm site length, gate clearance, pathway width, and final placement before order. The Seven Seas team handles a site assessment as part of the installation service.
Indoor installation is supported but adds requirements. Indoor swim-spa installations need active humidity ventilation (swim spas evaporate more water than hot tubs), a moisture-resistant floor structure rated for the filled weight, an electrician-approved feed, and code-compliant drainage. See the swim-spa indoor installation guide in the owners area.
Filled weight is substantial. Filled weights range from roughly 12,000 to 30,000+ pounds depending on model and configuration. A level reinforced concrete pad rated for the filled weight (or a deck engineered to the same load) is required.
Water care is similar to a hot tub but at higher volume. UVC + CD Ozone on the premium models reduces daily chemical management. Filter cleaning runs on a monthly cadence, see the swim spa filter care guide. Drain-and-refill intervals are longer than a hot tub because the volume is roughly 4-7× higher.
Electrical service depends on series. The R-Series runs 230 V / 30 amp standard (60 amp optional), friendlier for retrofit installs. The E-Series and X-Series run 230 V / 60 amp to support the larger pump and concurrent jet/heater operation. A GFCI sub-panel ships with the spa; the wiring run to the sub-panel is the buyer's responsibility, coordinated by Seven Seas with a licensed electrician.
Configuration choices are made at order. Underwater Treadmill (E-Series), shell color (Alpine White / Ice Gray), cabinet color (Mocha / Gray), and accessory packages are configured before manufacturing. Seven Seas walks every buyer through the configuration decision before the order is placed.
Delivery often needs a crane. Swim spas are too long and heavy for many backyard delivery paths. Many installs require a crane drop or a clear straight-line path. The Seven Seas delivery service coordinates the logistics so most people don't have to.

Plan Your Endless Pools Installation

Seven Seas coordinates delivery, installation, electrical planning with a licensed electrician, crane scheduling where required, and post-fill water care for Endless Pools swim spas.

Why Seven Seas Carries Endless Pools

Seven Seas Pools & Spas is an authorized Endless Pools dealer and the local face of the brand for Watkins Wellness's swim-spa category. Buying an Endless Pools swim spa through Seven Seas means:

Test soak before purchase. Call or stop by your local Seven Seas location to see which Endless Pools models are currently on display and book a private wet-test soak appointment to feel the Hydrodrive™, RecSport®, or SwimCross® current at multiple pace settings, sit in the hydromassage seats, and (where on display) walk the optional Underwater Treadmill.
Local warranty service. Seven Seas processes Endless Pools warranty claims locally for spas sold from our locations, no remote-vendor warranty hand-offs.
Full delivery and installation. The delivery service and installation service are handled by Seven Seas crews, including site assessment, electrical coordination with a licensed electrician, crane scheduling where required, GFCI sub-panel mounting, and post-fill water balancing.

Ongoing water care support. The water care service supports owners through the UVC + CD Ozone cycle, filter replacement, and seasonal drains at the longer swim-spa cadence.
Owners area resources. Seven Seas's post-purchase content hub covers swim-spa filter care, winterizing, indoor installation, and seasonal maintenance routines for swim-spa owners specifically.
Cross-brand showroom. If you're cross-shopping the swim-spa-vs-hot-tub question can compare Endless Pools, Caldera Spas, and Hot Spring Spas in the same visit, all three Watkins Wellness brands under one roof.

How Endless Pools Fits in the Watkins Wellness Family

Endless Pools, Caldera Spas, and Hot Spring Spas are the three Watkins Wellness consumer brands. They share a parent (Watkins Wellness, a MASCO company), Vista, California engineering, and a dealer-network distribution model, and they split cleanly on category and on signature technology:

Endless Pools owns the swim-spa category, adjustable swim currents tuned to three swimming styles (Hydrodrive™, RecSport®, SwimCross™), optional underwater treadmill across the E-Series, and the dual-temperature E2000 / X2000 flagships that combine swim spa and hot tub in one shell.

Caldera Spas owns one of the two flagship hot tub identities, built around the UltraMassage® Lounge full-body sequence, the Atlas® Neck Massage above-water seat, and the Advent® touchscreen control system. Four series (Utopia®, Paradise®, Vacanza®, Fantasy) span 23 models from a 2-person entry tier to an 8-person flagship.

Hot Spring Spas owns the other flagship hot tub identity, built around the patented Moto-Massage® DX sweeping back jet, the 100% no-bypass Tri-X® filtration cycle, and the IQ 2020® integrated control system. Four series (Highlife®, Limelight®, Hot Spot®, Freeflow®) span 24 models.

The three brands are complementary, not competing. A household choosing between an Endless Pools swim spa and a Hot Spring or Caldera hot tub is choosing between categories, swim-plus-spa in one longer footprint, or a more compact hydrotherapy-only soak. The Swim Spa vs Hot Tub cross-category comparison page lays out the use-case, footprint, electrical, and operating-cost trade-offs for households genuinely cross-shopping the two categories. Households that want both, daily hot-tub soaking and a real lap-training swim zone under one cover, find their answer in the dual-temperature E2000 or X2000, the configuration engineered for exactly that decision point. Some households buy a hot tub from the Hot Spring or Caldera lineup and an Endless Pools swim spa as separate products; the three brands are designed to coexist on the same backyard.

Seven Seas carries all three Watkins Wellness brands, visit a showroom to compare.

Frequently Asked Questions

Endless Pools was founded in 1985 by James Murdock, who installed the first prototype for swimmers at Columbia University. The original idea came from Murdock's father's stories about swimming in irrigation canals.

Endless Pools is headquartered at 1601 Dutton Mill Road, Aston, Pennsylvania. The brand's parent, Watkins Wellness, is headquartered in Vista, California.

Endless Pools is part of Watkins Wellness™, a MASCO company, the same parent that owns Hot Spring Spas and Caldera Spas.

The three are Endless Pools' signature swim-current technologies, one per series. Hydrodrive™ (E-Series) is the premium swim-current platform, a smooth, turbulence-free current with 31 to 116 pace settings and a max pace of 1:08 per 100 yards, engineered for swimmers from beginner to race-pace. RecSport® (R-Series) is the value-tier current, a smooth, adjustable jetted current built into the R200, R220, and R500 for family swim and recreational fitness. SwimCross® (X-Series) is the cross-training current with variable resistance, built into the X500 and the X2000 dual-temperature flagship for aerobic and recovery workouts.

No; they're sister brands inside the Watkins Wellness portfolio, but they cover different categories. Hot Spring Spas makes traditional hot tubs (no swim function). Endless Pools makes swim spas (swim plus spa zone). Caldera Spas is the third Watkins Wellness brand and also makes traditional hot tubs. Seven Seas carries all three.

Yes. Endless Pools is part of the lineup carried by Seven Seas Pools & Spas. Call or stop by your local location to see which Endless Pools models are currently on display and to book a private wet-test soak appointment, visit a showroom to see the spa filled, feel the swim current at multiple pace settings, sit in the hydromassage seats, and walk the optional Underwater Treadmill where on display. Cross-brand cross-customers can compare Endless Pools, Caldera, and Hot Spring spas during the same visit.

It depends on the series. The R-Series (R200, R220, R500) runs 230 V / 30 amp standard with 60 amp optional. The E-Series and X-Series run 230 V / 60 amp to support the larger swim pump and concurrent operation of jets and heater. A GFCI sub-panel ships with the spa. Seven Seas coordinates the licensed-electrician install during the site assessment.

Footprints range from 12 feet (R200, R220) up to 20 feet (E2000, X2000). The mid-range sits at 15 feet (E500, E550, R500, X500) and 17 feet (E700).

Yes. The lineup ships with a 4,000 W / 230 V heater sized for year-round operation in U.S. climates and a Tri-Thermic Barrier System or equivalent multi-layer thermal package. The E-Series 14-gauge galvanized steel frame and durable all-season cabinet are engineered for outdoor installation. Seven Seas can provide a climate-specific operating-cost estimate during the showroom visit.

A swim spa pairs an adjustable swim current with a spa zone for hydromassage in the same shell, you swim laps, do water-aerobic workouts, or walk the optional Underwater Treadmill in the swim zone, then move to the hydromassage seats to recover. A hot tub is hydrotherapy-only, typically smaller, shorter, lower-amp service, and built around hot-soak temperatures rather than around a swim current. If you want both functions in one footprint, a swim spa is the fit. If you want a smaller, simpler hot-soak installation, Hot Spring Spas or Caldera Spas is the fit. Seven Seas carries all three brands and can walk through the trade-offs at any showroom.

Yes; Endless Pools also makes modular pools (EP-Series, Plus-Series, Pro-Series, SP-Series, Plunge Pools) and the Fastlane® Series retrofit current that adds an Endless Pools current to existing pools. Seven Seas's Endless Pools focus is the swim-spa lineup, the three series and nine models that pair the adjustable current with a built-in spa.

Endless Pools does not publish a single consolidated warranty page on the manufacturer site, coverage terms appear on individual product pages and on warranty documents at the time of order. Seven Seas walks every 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.

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What Makes Endless Pools Different

E-Series

R-Series

X-Series

See if an Endless Pools swim spa fits your space

Hydrodrive™ Technology (E-Series)

RecSport® Technology (R-Series)

SwimCross® Technology (X-Series)

UVC + CD Ozone Water Care

Dual-Temperature Two-Zone Architecture (E2000, X2000)

14-Gauge Galvanized Steel Frame Construction (E-Series)

Optional Underwater Treadmill

Tri-Thermic Barrier System

When Was Endless Pools Founded?

Where Is Endless Pools Headquartered?

Who Owns Endless Pools?

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

Are Endless Pools and Hot Spring Spas the Same Brand?

Can I See an Endless Pools Swim Spa Filled at a Seven Seas Showroom?

What Electrical Service Does an Endless Pools Swim Spa Need?

How Long Are Endless Pools Swim Spas?

Can I Run an Endless Pools Swim Spa Year-Round?

What's the Difference Between an Endless Pools Swim Spa and a Hot Tub?

Does Endless Pools Make Anything Other Than Swim Spas?

What's the Endless Pools Warranty?

Where to See Endless Pools in Person

Series Hubs

E-Series Models

R-Series Models

X-Series Models

Signature Technologies

Parent

Sister Brands

Categories

Services

Owners Area

Locations

Clarion

Cranberry Township

DuBois

Hermitage

North Fayette

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