Quick verdict
The family sweet spot — deep, swimmable, and sturdy, with a complete pump-and-accessory set. The XTR size most people should buy.
Ideal for
- Families wanting real swimming room
- Typical backyards
- Buyers who want depth (52 in)
Not ideal for
- Very small yards (get the 14 ft)
- Big groups needing a 24 ft+
The full picture
The 18-foot Ultra XTR is the size most families land on: at 52 inches deep and about 6,981 gallons, it's genuinely swimmable — deep enough for adults to float and cool off, roomy enough for kids to play — while still fitting a typical backyard. The XTR dual-frame construction keeps the tall walls rigid, and the set comes complete with a 2,100 GPH sand filter pump, ladder, cover, and ground cloth. It's the middle of the XTR ladder and, for most households, the best balance of room, depth, and yard footprint.
Intex Ultra XTR Frame Pool (18 ft x 52 in) at a glance
- Shape
- Round
- Size
- 18 ft x 52 in
- Frame
- Ultra XTR dual steel frame
- Wall / liner
- SuperTough puncture-resistant
- Capacity (gallons)
- 6,981
- Setup time
- ~60–90 min
- Included pump
- 2,100 GPH sand filter pump
- Filter type
- Sand
- Ladder included
- Yes
- Cover included
- Yes
- Ground cloth included
- Yes
- People for setup
- 2
- Winterization
- Drain and store for winter in freezing climates.
Source: Compiled from manufacturer specifications, retailer listings, and aggregated owner feedback. Gallon figures are approximate (about 90% fill) — confirm exact specs and price with the retailer.
This is a research-based review — our analysis draws on manufacturer specifications, manuals, warranty terms, and verified owner feedback rather than our own hands-on testing, and we note where a detail couldn't be confirmed. How we review
Performance breakdown
Research-based editorial judgments from specs, warranty terms, and verified owner feedback — not lab measurements. How we score
Pros and cons
What works
- Deep 52-inch walls — real swimming room
- Sturdy dual-frame XTR build
- Complete set with 2,100 GPH sand pump
- Fits typical backyards
What doesn't
- Higher price than small pools
- Tall walls need a ladder (included)
- Longer setup than shallow pools
- Large water volume to heat/treat
Best alternatives to Intex Ultra XTR Frame Pool (18 ft x 52 in)
Intex
Intex Ultra XTR Frame Pool (24 ft x 52 in)
Best full-size frame pool
The biggest mainstream frame pool: a full-size swimming footprint with a powder-coated steel frame and a sand filter pump in the box.
Intex
Ultra XTR (26 ft x 52 in)
Intex
Intex Ultra XTR Frame Pool (26 ft x 52 in)
Best large round (XTR)
A big-family XTR — a 26-foot round holding roughly 14,000 gallons, with a high-flow 2,800 GPH sand pump.
Intex
Ultra XTR (32 ft x 16 ft x 52 in)
Intex
Intex Ultra XTR Rectangular Pool (32 ft x 16 ft x 52 in)
Best extra-large rectangular
The near-in-ground XTR — a huge 32-by-16-foot rectangle for lap swimming and big gatherings, with a 2,800 GPH sand pump.
Intex
Ultra XTR (14 ft x 42 in)
Intex
Intex Ultra XTR Frame Pool (14 ft x 42 in)
Best small round (XTR)
The small end of Intex’s premium XTR line — a sturdy 14-foot round with the dual-frame build, for compact yards.
Frequently asked questions
Is the 18-foot XTR big enough to actually swim in?
For cooling off, floating, and kids’ play, yes — at 52 inches deep and ~6,981 gallons it’s genuinely swimmable, unlike shallow starter pools. It won’t replace a lap pool, but it’s the size most families are happy with.
How much water does it hold?
About 6,981 gallons at 90% fill. That volume takes longer to heat and treat than a small pool, so budget for a bit more chemicals and, if you want warm water, a heat pump.
What pump comes with it?
A 2,100 GPH sand filter pump, which handles the larger volume well and is lower-maintenance than cartridge. The set also includes a ladder, cover, and ground cloth.
How long to set it up?
Roughly 60–90 minutes with two people on level, cleared ground — the taller walls and larger fill take longer than a small pool. A level base is critical at this size.
Does the ground need to be perfectly level?
Yes — level ground matters more as pools get bigger and deeper. An unlevel base stresses the frame and liner and can cause leaning or failure, so prep the site carefully.
Can I add a heater or salt system?
Yes — many owners pair an above-ground-rated heat pump and even a salt chlorinator (like the Hayward AquaTrol) with an 18-foot pool. See our heater and salt-system categories for compatible options.