There is no 20-by-40-foot swimming pool among these listings. The closest pool options are 20-foot round above-ground models, which are about 20 feet across rather than 40 feet long. For an existing 20-by-40-foot inground pool, the listed safety cover is the direct size match. The comparison below separates that cover from pool alternatives so you can choose based on what you actually need.
| Product | Best For | Key Difference |
|---|---|---|
| INFRANGE 20′ x 40′ Safety Cover | Owners of a matching inground pool | Exact stated cover dimensions |
| Bestway APX 365 | Year-round above-ground use | 20-foot round pool with sand filter pump |
| INTEX Prism Frame | Buyers seeking a complete pool set | 52-inch wall and listed accessories |
| INTEX Ultra XTR | Buyers prioritizing frame construction | Galvanized steel frame and locking system |
| Bestway Steel Pro MAX | Buyers open to a smaller pool | 15-foot round pool, pool only |
INFRANGE 20′ x 40′ Inground Safety Cover
Best for: Owners looking for a cover for an inground pool measuring 20 by 40 feet. This is the only listing with the requested rectangular dimensions, but it is a safety cover, not a swimming pool.
The cover is made from high-density polyethylene. Its edges use wire cable, and the corners have A-rings intended to attach to anchored bolts with straps. The listing says it helps keep leaves, dust, and other debris out of the pool.
Why it was selected: It is the closest direct match for someone searching the exact 20-by-40 measurement. Limitation: Confirm the pool’s actual dimensions and anchor arrangement before choosing a cover; the product information does not establish compatibility with every pool shape or installation.
Bestway APX 365 20-Foot Round Pool
Best for: Buyers who want a large above-ground pool designed to remain set up year-round. It measures 20 feet across and 52 inches high, so it is not a 20-by-40-foot rectangular pool.
The pool holds 8,781 gallons at 90% capacity, according to the listing. Its galvanized-steel frame is described as resistant to rust and weather-related damage. ClickConnect System joints use quick-click connectors for tool-free setup, and the set includes a sand filter pump.
Why it was selected: Among the pool listings, it offers the closest 20-foot dimension and a year-round-use design. Limitation: Its round shape does not provide the 40-foot length of a rectangular pool.
INTEX Prism Frame 20-Foot Pool Set
Best for: Families seeking a 20-foot round pool set with accessories included. The pool is 52 inches high and has a stated water capacity of 8,638 gallons.
The package includes a 1,500 GPH cartridge filter pump, one filter cartridge, a ladder, a pool cover, and a ground cloth. INTEX describes setup as taking about 60 minutes on level ground. Its T-joint frame design is intended to assemble without tools.
Why it was selected: It pairs a 20-foot footprint with several included items, making it a useful alternative for buyers who need a complete above-ground setup. Limitation: It is round, not 20 by 40 feet, and requires level ground.
INTEX Ultra XTR 20-Foot Pool
Best for: Buyers who value the listed frame design and rust-resistance features in a 20-foot round pool. This model is 48 inches high.
Its frame combines galvanized steel with a locking system. The listing describes inner and outer powder coating for rust resistance and UV-inhibitor-infused T-joints for weather resistance. The Easy Lock System uses snap-together components without locking pins or additional tools. A two-year warranty is listed.
Why it was selected: It provides another 20-foot-wide pool option, with emphasis on its frame and assembly system. Limitation: Its 48-inch height differs from the 52-inch models, and its round shape is not equivalent to a 20-by-40-foot pool.
Bestway Steel Pro MAX 15-Foot Pool
Best for: Buyers willing to consider a smaller, round above-ground pool. It measures 15 feet across and 48 inches high, with a stated capacity of 4,231 gallons at 90% capacity.
The steel frame is described as corrosion resistant. ClickConnect System joints are designed for setup and takedown without additional tools, which may suit seasonal use and off-season storage. This listing is for the pool only.
Why it was selected: It provides a smaller alternative for shoppers whose yard or pool needs do not require a 20-foot model. Limitation: It is substantially smaller than a 20-foot pool and does not include a pump or other listed accessories.
Buying Guide: How To Choose A 20 By 40 Pool
Do you need a pool or a cover?
Check whether your search is for a new swimming pool or a replacement cover. The 20-by-40-foot listing is a cover for an inground pool. The above-ground pools listed here are round and measure 15 or 20 feet across. None is a 20-by-40-foot pool.
How should you compare the pool alternatives?
Start with the shape and footprint. A 20-foot round pool needs a roughly circular installation area, while a 20-by-40-foot rectangle needs a much longer area. Compare wall height, stated water capacity, frame details, and included equipment. The Prism Frame set includes several accessories; the APX 365 listing specifies a sand filter pump; the Steel Pro MAX is pool only.
What should you check before ordering?
Measure the available yard space and confirm the product’s actual dimensions. For an above-ground pool, the INTEX Prism listing calls for level ground. For the safety cover, check the pool measurements and the location and type of anchors. Do not assume a round pool, rectangular cover, or differently sized model will fit your intended installation.
Frequently Asked Questions
Is a 20-by-40 pool included in these options?
No. The listed pools are round models measuring 15 or 20 feet across. The 20-by-40-foot product is an inground safety cover.
Which listed pool is closest to 20 feet across?
The INTEX Prism Frame, INTEX Ultra XTR, and Bestway APX 365 are all listed as 20-foot round pools.
Which option is designed for year-round setup?
The Bestway APX 365 listing describes the pool as designed for year-round use and says it can remain set up through winter.
Does the 20-by-40 cover include a pool?
No. It is a cover for an inground pool, not a swimming pool.
Which pool listing includes the most accessories?
The INTEX Prism Frame set lists a pump, filter cartridge, ladder, pool cover, and ground cloth in addition to the pool.