Tropical EC-739B

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  Seats 6 Adults

  7′ x 7′ x 40.5″

  39 Jets

Or Call Us: (317) 773-3545


The Tropical EC-739B is a 6-person spa with bench style seating. It has tons of features for a relaxing and rejuvenating hot tub experience. This roomy 6-person spa is ideal for hosting friends or just relaxing with family. The Tropical EC-739B features 39 exclusive VelocityTM Jets powerful jets powered by a 2-pump system and a 5.5kW heater for efficient water heating.

The contoured, form-fitted bench seating is great for conversing or just relaxing as the targeted massage jets do their work. Jet configurations vary by seat so you can choose the massage that suits your mood. The stress will simply melt away as you enjoy the beauty of the curved cascade LED waterfall and perimeter LED lighting. The temperature, jets, and lighting controls are right at your fingertips with the are easily adjusted from the convenient control panel.

The Tropical EC-739B measures 7′ x 7′ x 40.5″, making it a great size for most families. It’s thermo-shield side paneling is engineered with premium insulation. This allows for optimal energy efficiency and heat retention. The spa’s cabinet frame is made from pressure-treated wood to resist bugs, decay, and rot. The shell is made with patented 7-layer laminate steel and wood to make it extremely strong and durable. strength and durability. And of course, the Tropical EC-739B comes in a range of beautiful cabinet and shell colors.

With so many great features, it’s easy to love the Tropical EC-739B. Plus, this spa includes a 10-year structural warranty, 7-year finish warranty, and 5-year warranties on labor, cabinet, and parts. Your daily dose of relaxing hydrotherapy awaits with the Tropical EC-739B.


Seating Capacity

6 Person

Cal Spas Series

Escape Series

Seating Style

Bench Seating


Cal Spas

Hot Tub Size



7' x 7' x 40.5″

Water Capacity

425 (1,609 L)

Weight (dry)

800 (363 kg)

Weight (filled)

4,340 (1,969 kg)

Jet Count



38 Stainless Steel Jets: Exclusive Velocity™ Jets, 1 Dome Jet with Valve

Water Care Systems

Compatible with Bromine or Chlorine



Water Feature

LED Waterfall

Multi-color LED Lighting

Perimeter LED Lighting

Circulation Pump

2 x 6.0 BHP (2 x 3.0HP) Eliminator High Performance™ Pump

Heater Output

5.5kW Titanium Heater

Control System

BP 501G1 Cal-Spa Touch1

Electrical Requirements


Gate Valve(s)


Air Venturi Valve


Filter Size

50 sq. ft. filter

Energy Efficiency

Thermo-Shield™ Insulation Side Panels and Thermo-Layer Floor with ABS Liner

Ozone System

Pure Silk™ Ozonator with Mazzei Injector and Mixing Chamber

Pressure Treated Cabinet


Cabinet Access Drain



Cal Spas Premium Badge on Cabinet

Cabinet Type

Cal Preferred™ Vertical

Spa Shell Options

Deluxe Colors

Cabinet and Step Colors

Mahogany, Smoke, or Mist

Cover Colors

Brown or Gray


10 Years (Structural), 7 Years (Finish), 5 Years (Parts, Labor, Cabinet)

Color Options

Owner’s Manuals

Escape and Platinum Series Owner’s Manual

Cal Spas makes it easy to access the owner’s manuals for your Cal Spas hot tub. Find owner’s manuals for current and past models. Download manuals in PDF form on the Cal Spas website.

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