Swim Spa Sizes & Cost: Choosing an Endless Pools Model

Swim spas come in more sizes than most shoppers expect — and unlike hot tubs, the size question and the price question are really the same question. Length and current technology set the price. Here's the honest map of both, so you can find your lane before you visit.

The sizes, plainly

Endless Pools builds swim spas from 12 to 20 feet long. What the lengths mean in practice:

• 12 feet (R200, R220) — the tight-space option. A real current to swim and exercise against, in barely more footprint than a large hot tub.
• 15 feet (R500, X500, E500, E550) — the most popular middle. Room to swim, exercise, and soak, with seating for the family (the E550 trades seats for standing room and extra width — it's the dedicated-workout pick).
• 17 feet (E700) — big, uninterrupted swim space plus relaxation room.
• 20 feet (X2000, E2000) — the flagships. Both are dual-zone: a swim end and a separate spa end running at different temperatures at once, so one person trains cool while another soaks hot.

Remember the site rule from our swim-spa guide: every one of these needs a dedicated 240V circuit and an engineered, load-rated pad, and most are crane-set. The bigger the model, the more the site work matters. Plan it with us early.

What they cost

Endless Pools publishes its pricing, so we can be direct. Rounded from the manufacturer's current published figures:

• R-Series (RecSport®) — recreation and family fitness — starts in the mid-$20,000s.
• X-Series (SwimCross®) — the fitness-focused middle tier — starts in the high-$30,000s.
• E-Series (Hydrodrive™) — the premium swim experience, with the smoothest current and the optional underwater treadmill — starts in the mid-$50,000s.

Those are starting neighborhoods, rounded from the published MSRPs: they exclude accessories, shipping, and taxes, and the longer, dual-zone models in each series run higher. Options add real money too — the underwater treadmill (E-Series only) is a five-figure add-on at published pricing, and covers, sound systems, and stair kits each carry their own published prices. The honest summary: a swim spa is the biggest investment in the backyard-wellness category — more than any hot tub, less than most in-ground pools once you count the pool's excavation, fencing, and upkeep.

For a real number on a specific model with your options and your site work, get pricing — and if a monthly payment fits better, ask us about financing when you do.

How to choose, in three questions

1. Will you actually swim? If yes, current quality is everything — that's the E-Series Hydrodrive case. If it's fitness, play, and recovery more than lap swimming, the X- or R-Series current does the job for less.
2. How much yard can you give it? Measure first. The 12-foot models exist precisely because most yards aren't pool-sized.
3. Will two people use it differently at once? That's the dual-zone case (X2000, E2000): train in the cool end while someone soaks in the hot end.

Then come feel a current. It settles the series question faster than any spec sheet.