Intex Ultra XTR 18ft x vs Intex Ultra XTR 20ft x (2026): Key Differences
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The intex ultra xtr 18ft x vs ultra xtr 20ft x comparison highlights two distinct shapes in the same series. Both use a rust-resistant galvanized steel frame and a 3-ply PVC liner for durability. They share the same 52-inch height and Easy Lock assembly system. The main difference is the footprint. One is round, while the other is rectangular. This changes how they fit your space and how you use the water.
Key differences
| Aspect | Intex Ultra XTR 18ft x 52in Round Pool Set | Intex Ultra XTR 20ft x 10ft Rectangular Pool |
|---|---|---|
| Shape | Round | Rectangular |
| Dimensions | 18 ft diameter | 20 ft x 10 ft |
| Water Capacity | 6,981 gallons | not listed |
| Liner Material | 3-ply PVC, polyester mesh | 3-ply PVC |
| Included Accessories | Ladder, pool cover, ground cover | Patch kit |
Which one should you choose?
Choose Intex Ultra XTR 18ft x 52in Round Pool Set if
- You prefer a circular shape that fits well in corner spaces.
- You want a larger water volume for more guests.
- You need a ladder and ground cover included in the set.
Choose Intex Ultra XTR 20ft x 10ft Rectangular Pool if
- You want a rectangular layout for swimming laps.
- You need a patch kit for quick liner repairs.
- You prefer a gray color option for the pool.
Verdict: The round 18ft model offers more water capacity and comes with a ladder and cover. The rectangular 20ft model provides a lap-swimming shape and includes a repair patch. Choose the round pool for socializing and the rectangular one for exercise.
Shape, Size, and Build Specs
Shape and layout
The Intex Ultra XTR 18ft x 52in Round Pool Set offers a circular footprint with an 18-foot diameter. This shape maximizes open swimming space in the center. The Intex Ultra XTR 20ft x 10ft Rectangular Pool features a 20-foot by 10-foot rectangular design. Rectangular pools often provide more structured swimming lanes and corner seating areas. You choose between the classic round layout or the elongated rectangular form based on your yard space and swimming preferences.
Water capacity
Capacity matters for how many people can swim comfortably. The round pool holds 6,981 gallons of water. The rectangular pool data does not list a specific gallon capacity. However, the rectangular model is larger in overall footprint at 20ft by 10ft compared to the 18ft diameter circle. Generally, a larger footprint suggests a higher volume, but you cannot confirm the exact gallon count for the rectangular model from the provided specs. The round pool gives you a confirmed large volume for family use.
Frame material
Both pools prioritize durability with rust-resistant frames. The round pool uses a galvanized steel frame with inner and outer powder coating. It also features high-strength T-Joints with a UV inhibitor. The rectangular pool also uses a galvanized steel frame with inner and outer powder coating for rust resistance. Its T-Joints are engineered for strength and UV protection. Both models offer similar protective coatings against weather and corrosion, ensuring long-term structural integrity for your outdoor setup.
Liner construction
The liner is the barrier that holds your water. The round pool liner is made of high-strength polyester mesh and an extra thick layer of PVC. This 3-ply construction provides exceptional tear resistance. The rectangular pool liner is constructed with puncture-resistant 3-ply PVC. It does not explicitly mention the polyester mesh layer found in the round model. The round pool specifies a mesh backing for added durability, while the rectangular model emphasizes puncture resistance. Both use 3-ply PVC for reliable water containment.
Filtration system
Water clarity depends on the filter pump. The round pool includes a 2,100 GPH Krystal Clear Sand Filter pump. This pump uses sand for filtration, which lasts up to 5 years with regular backwashing. The rectangular pool includes a Krystal Clear Sand Filter System but does not specify the flow rate in gallons per hour. The round pool provides a clear filtration speed of 2,100 GPH. You know exactly how fast the water circulates in the round model, whereas the rectangular model lacks this specific performance metric in the data.
Which model fits your space
Need a circular swimming area
The 18ft round design maximizes open swimming space in the center. It holds 6,981 gallons of water, which is ideal for family gatherings. The included 2,100 GPH sand filter pump ensures clear water. You get a ladder, cover, and ground cover for a complete setup right out of the box.
Prefer a rectangular layout
This 20ft by 10ft rectangular pool offers a different shape for your backyard. It includes a sand filter system to keep water clean. The rust-resistant frame and 3-ply PVC liner provide durability. Assembly takes about 90 minutes using the Easy Lock system, which requires no tools or pins.
Want a smaller footprint
At 18ft in diameter, this round pool fits in tighter spaces than the larger rectangular option. It weighs 274 pounds, making it slightly lighter than the 303-pound rectangular model. The 52-inch height is consistent with the series. You receive a complete set with necessary accessories for immediate use.
The products compared
Intex Ultra XTR 18ft x 52in Round Pool Set
Best for: spacious round family swimming
- Dimensions
- 18 ft
- Water Capacity
- 6,981 gal
- Pool Height
- 52 in
- Shape
- Round
- Filter Pump Type
- Sand filter pump
- Liner Material
- 3-ply PVC
View on Amazon: Intex Ultra XTR 18ft x 52in Round Pool Set Affiliate link
The Intex Ultra XTR 18ft x 52in Round Above Ground Swimming Pool Set offers a 6,981-gallon water capacity for family use. It features a rust-resistant galvanized steel frame and a durable 3-ply PVC liner. The included 2,100 GPH sand filter pump simplifies maintenance by using sand instead of cartridges. This model provides a spacious round design for summer enjoyment.
Pros
- 6,981-gallon water capacity
- Rust-resistant powder-coated galvanized steel frame
- Durable 3-ply PVC and polyester mesh liner
- Easy Lock assembly system requires no tools
- 2,100 GPH sand filter pump for easy maintenance
Cons
- Smaller 18ft diameter compared to the 20ft option
- Round shape limits usable swimming lanes
- No remote or app control for the pump
Good fit if
- You want a large round pool for family gatherings
- You prefer low-maintenance sand filtration over cartridges
- You need a tool-free assembly process
Skip if
- You need a rectangular shape for lap swimming
- You require smart home integration for the pump
- You prefer a larger 20ft diameter footprint
Verdict: Intex Ultra XTR 18ft Round Pool suits buyers seeking a spacious, durable round pool with simple sand filtration. It fits those who value easy assembly and a large water capacity for social swimming.
Intex Ultra XTR 20ft x 10ft Rectangular Pool
Best for: Large rectangular swimming spaces
- Dimensions
- 20 ft x 10 ft
- Pool Height
- 52 in
- Shape
- Rectangular
- Filter Pump Type
- Sand filter pump
- Liner Material
- 3-ply PVC
- Frame Material
- Galvanized steel
View on Amazon: Intex Ultra XTR 20ft x 10ft Rectangular Pool Affiliate link
This Intex Ultra XTR model is a rectangular above-ground pool measuring 20 feet by 10 feet with a 52-inch height. It uses a galvanized steel frame with a snap-together locking system for assembly in 90 minutes. The 3-ply PVC liner is puncture-resistant and includes a sand filter pump to keep water clean. It suits you if you want a large, durable rectangular shape for your backyard.
Pros
- Rectangular 20 ft x 10 ft footprint offers more usable swimming space
- Galvanized steel frame with precision-engineered locking system for stability
- Includes Krystal Clear Sand Filter System to reduce chemical use
- 3-ply PVC liner is puncture-resistant and comes with a repair patch
Cons
- Rectangular shape requires more linear wall space than round pools
- Sand filter pump requires periodic backwashing maintenance
- Weighs 303 pounds, making it bulkier to move after assembly
Good fit if
- You have a long, rectangular yard space available
- You prefer the stability of a steel frame over resin
- You want a large surface area for swimming laps
Skip if
- You need a compact pool for a small patio
- You want to avoid the maintenance of a sand filter
- You prefer a round shape for easier corner management
Verdict: Intex Ultra XTR 20ft x 10ft Rectangular Pool fits you if you need a large, stable rectangular swimming area. Its steel frame and sand filter provide durable, low-chemical maintenance for serious backyard use.
Specifications side by side
| Spec | Intex Ultra XTR 18ft x 52in Round Pool Set | Intex Ultra XTR 20ft x 10ft Rectangular Pool |
|---|---|---|
| Dimensions | 18 ft | 20 ft x 10 ft |
| Water Capacity | 6,981 gal | not stated |
| Pool Height | 52 in | 52 in |
| Shape | Round | Rectangular |
| Filter Pump Type | Sand filter pump | Sand filter pump |
| Liner Material | 3-ply PVC | 3-ply PVC |
| Frame Material | Galvanized steel | Galvanized steel |
| Assembly Time | not stated | 90 minutes |
| Features | Pool Cover, Filter Pump, Sand Filter Pump, Ladder | Filter Pump, Sand Filter Pump |
| Use | Poolside | Poolside |
| Height | 52" | 52" |
| Weight | 274 pounds | 303 pounds |
| Size | 18' x 52" | 20' x 10' x 52" |
| Color | Original Packaging | Gray |
| Model | 26329EH | 26357MZ |
Frequently asked questions
Is the Intex Ultra XTR 18ft x round pool or rectangular?
The Intex Ultra XTR 18ft x model is a round pool. It features a circular footprint with an 18-foot diameter. This shape maximizes open swimming space in the center. The design is ideal for buyers seeking a spacious, durable round pool with simple sand filtration.
What are the exact dimensions of the Intex Ultra XTR 20ft x pool?
The Intex Ultra XTR 20ft x pool measures 20 feet by 10 feet by 52 inches. Its width is 240 inches, and its length is also 240 inches. The height stands at 52 inches. This rectangular shape fits you if you need a large, stable swimming area.
Does the 20ft x 10ft model include a sand filter?
Yes, the Intex Ultra XTR 20ft x 10ft Rectangular Pool includes a sand filter pump. The product attributes list both a filter pump and a sand filter pump. This setup provides durable, low-chemical maintenance for serious backyard use.
How heavy is the 18ft round pool compared to the rectangular one?
The 18ft round pool weighs 274 pounds. The 20ft x 10ft rectangular pool is heavier at 303 pounds. The difference in weight reflects the larger footprint and additional materials in the rectangular model. Both use a rust-resistant galvanized steel frame for support.
What is the model number for the Intex Ultra XTR 18ft x?
The model number for the Intex Ultra XTR 18ft x 52in Round Pool Set is 26329EH. This identifier helps you locate the specific product in catalogs or online listings. It is distinct from the rectangular model, which carries model number 26357MZ.
Is the 20ft x 10ft pool gray or another color?
The Intex Ultra XTR 20ft x 10ft Rectangular Pool is gray. The specifications list the color as gray. This neutral tone blends well with most backyard settings. The 18ft round model comes in original packaging, which may vary in appearance.
Can the rectangular pool fit in a standard backyard space?
The rectangular pool measures 240 inches in both width and length. This large footprint requires significant yard space. It fits you if you need a large, stable rectangular swimming area. Ensure your backyard can accommodate these dimensions before purchasing.
What is the height of both Intex Ultra XTR models?
Both models share the same 52-inch height. The round pool is listed at 52 inches, and the rectangular pool is also 52 inches high. This consistent height allows for similar water levels and access points. It supports the Easy Lock assembly system for both units.

