Endless Pools vs Bullfrog swim spas

Endless Pools uses a propeller in 4 models (E-Series) and jets in 5 (R-Series and X-Series). Bullfrog uses jets in 3 models (Swim Series).

A propeller turns behind a grate and pushes one wide column of water. Jets fire water through a few nozzles, often with air mixed in, so the current is narrower and more broken up. What you feel is the width and steadiness of the water, not the horsepower on the spec sheet. The guide to swim spa jets vs propeller explains the trade-offs.

Endless Pools publishes the open swim area for 6 of its 9 models; the longest is 137.5 by 81 in, on the E550. Bullfrog publishes outside dimensions only, so ask the dealer how long the open water is.

Outside lengths run 12 ft to 20 ft for Endless Pools and 12 ft 8 in to 17 ft for Bullfrog. By length class, Endless Pools has 2 in the 12-foot class, 4 in the 14-foot class and 3 in the 16-foot class; Bullfrog has 1 in the 12-foot class, 1 in the 14-foot class and 1 in the 16-foot class. At the dealer, lie out in an empty display of the model you would buy, arms overhead: your feet shouldn't reach the seats. See swim spa sizes, 12-foot swim spas, 14-foot swim spas and 16-foot swim spas, and best swim spas for lap swimming.

Water held runs 1,080 to 2,395 gallons for Endless Pools and 1,190 to 1,950 for Bullfrog. More water means more to heat, treat and carry: have a builder or engineer check the pad or deck for the filled weight.

Endless Pools' models call for 30 to 60 A in total on 1 circuit; Bullfrog's call for 50 A on 1 circuit. The top of each range is the X2000 and the S200. A licensed electrician sizes the circuits for the model you buy. See swim spa electrical requirements.

Bullfrog, on the filings we matched: a median 462 W for Endless Pools' 7 filed models against 330 W for Bullfrog's 3. That is about 337 and 241 kWh a month just holding temperature. Length and cover change the figure, so compare the model you would buy. The swim spa running cost guide explains the test.

Endless Pools' structure warranty runs 10 years, equipment 3 to 5 years; coverage does not transfer. Bullfrog's structure warranty runs 10 years, equipment 5 years; coverage does not transfer. Read the warranty card for labor and the swim system itself, which some makers cover for less time than the shell.

Endless Pools posts list prices from $26,499 to $74,999 (checked Oct 2026). Bullfrog posts starting prices for each series from $37,895 to $47,695 (checked Oct 2026). Swim spa cost covers delivery, the pad and the electrician.

Endless Pools belongs to Masco Corporation, the same owner as Hot Spring and Caldera. Bullfrog is privately held. Where each builds its swim spas, and who services them:

• Endless Pools. Sold and serviced through about 250 dealers; Endless doesn't say where its swim spas are built.
• Bullfrog. Built in Bluffdale, Utah; service comes through dealers and factory stores, and some owners report slow repairs.

Every swim spa we track is listed by brand: Endless Pools swim spas and Bullfrog swim spas. Weighing one against a hot tub? Read swim spa vs hot tub, and for picks across brands, best swim spas.