Adjustable Therapy System™ (ATS)

Premium personalized hydrotherapy in your very own hot tub.

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Cal Spas Adjustable Therapy System Cal Spas Adjustable Therapy System Cal Spas Adjustable Therapy System

Targeted Muscle Relief Therapy

The ATS seats are contoured to conform to your body while the jets are placed along the lines of the body for maximum therapy benefits.

Our patented ATS seat features a dedicated motor and control panel that allows you to personalize your massage to nine distinctive pressure levels.


* picture for illustration only
Each ATS configuration varies by model. Please refer to individual line drawings for additional information

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Own a Traditional Spa With Modern Technology | PZ-511R

The PZ-511R Patio Round Spa from Cal Spas is a 6-person Hot Tub with 11 Jets. The shape is traditional and the dimensions of the PZ-511R are 78inx36in which is big enough to move around comfortably and the perfect height to step right in. This model fits perfectly on any niche of the patio!

Modern Features Include:
• Plug N Play Cord
• Intuitive Oval Topside Control
• 5in LED Spa Light with various modes
• 5kW Titanium Heater

Originally Hot Tubs were built out of wood in the shape of a circle. Through time, the wood started creating issues and manufacturers started creating solutions. Cal Spas is an American Manufacturer that builds each spa with perfection in mind. The shell is made from high-quality Acrylic with the choice of High Gloss White or Sterling Silver. Equipped with 10 Stainless Steel Exclusive Candy Cane Jets and 1 Whirlpool Jet. The PZ-511R operates at the voltage of 110V, which means you don’t need an electrician and you can plug the spa in to begin the hydrotherapy session. Intuitively change the spa functions with the Whisper Power Unit Oval Topside Control. You are able to manage the spa’s jets and cleaning cycles with ease. Keep a clear conscience with the 50 sq. ft. Bio-Clean Teleweir Filter for 100% water clarity. Other options for water clarity are available such as Pure Silk Ozonator with Mazzie Injector and Mixing Chamber and the Hybrid Sanitizing System. The PZ-511R from Cal Spas is built for decades to come using Thermo-Shield Insulation and a Pressure Treated Cabinet Frame. The Cabinet Panels come with a Cal Spas Premium Badge and is available in the colors Mahogany, Smoke, and mist. Choose a Gray or Slate Spa cover to match.