
![]()
4 Person Spa with 11 Jets
Enjoy relaxing day spa quality massages with the Cal Spas Aqua A511R (formerly Gen II™ 511R) hot tub. This round hot tub will take you away to a relaxing paradise beyond anything you’ve every dreamed of. This breathtaking “Plug & Play” hot tub combines the finest in hot tub engineering with pure elegance. Plug in your Aqua 511R hot tub today and experience the world of first-class hydrotherapy.
Specifications
Seats: 4 Adults- Dimensions: 78” R x 36” H
- Spa Volume: 300 Gallons
- Total Jets: 11
- Dimensions: 78” R x 36” H
- Seating: 4 person seating
- High Performance Switchless™ 2.0 BHP Pump: This 2.0 BHP Pump provides a two- pump performance with a single pump’s energy costs – saving you money!
- 11 Stainless Steel Candy Cane™ Jets: Each jet delivers a steady stream of water and is designed to address a specific muscle group for the ultimate hydrotherapy experience
- Back, Neck and Shoulder Jets – deliver invigorating massages to sore back, neck and shoulder muscles.
- Weight: 350 lbs. dry / 2,855 lbs. filled
- Water Capacity: 300 gallons
- “Plug & Play” C-Kit GFCI Plug: This convenient kit allows you to plug in our spa, without the cost of an electrician, so you can enjoy your spa immediately after purchase!
- Electrical: Pump Voltage – 110V / 240V
- Heater: WhisperHot™ 5.5 kW Flow-Thru Heater is designed for maximum operation and runs whisper-quiet at all times
- Filter: 50 sq. ft. Bio-Clean™ Antimicrobial Filter with Weir Gate – an easy access, reusable filter that provides balanced filtration and is easy to use. This system uses Microban inhibitors to prevent bacteria growth.
- Shell: Durable Acrylic Shell features the thickest acrylic in the industry to keep the shell strong at critical stress points.
- Cabinet: Maintenance-free Cal Preferred™ Synthetic Cabinet Panels in Mist, Mahogany, Smoke or Teak.
Features
- The Most Efficient Spa in the Industry: The Cal Spas Aqua – A511R (formerly Gen II™ 511R) hot tub features a high performance one-of-a-kind 2.0 BHP pump that lowers energy costs by efficiently circulating and filtering 100 percent of your spa water
- Convenient “Plug & Play” kit: Reduces installation costs since you can simply plug in your spa and soak – saving you money!
- Maintenance-Free Synthetic Cabinets: Constructed of high-grade synthetic material, these durable, insulated cabinets feature the richness of wood and are strong enough to support even the largest spa designs.
- Blue LED Spa Light: This breathtaking spa light adds a romantic touch to your hot tub.
- Standard Bottom Tray: Helps keep the area under the spa protected from rain, dirt and unwanted pests
- Electronic Controls: Whisper Power Unit™ VS300 Equipment with Digital VL-406U Topside – this user-friendly topside display with easy-to-read digital readout with backlight is easy to operate and places every vital control at your fingertips.
- Cover: Heavy Duty Hydro-Armor™Spa Cover – this 4” thick cover tapers to 2.5” at the edges to allow for run off of rain and prevent precipitation from pooling. The shield features safety locks and straps with a dense foam core to ensure superior thermal insulation.
- Warranty: 2-Year Structural, Finish, Parts & Labor
Options
iPod docking station with FM radio
Set the mood with your favorite music straight from your iPod to your new Spa! This option also features an FM transmitter, 4” speakers and water resistant remote control.
LED lighting
With several distinct color modes available, you pick the mood you would like to set. Then display your favorite color through your spas jets and around the top perimeter.
Waterfall
This innovative waterfall is designed with an adjustable control and will compliment any outdoor space. The tranquil sound of cascading water is exactly what you need to inspire the deepest of relaxation.
Ozonator
The addition of an ozonator is an eco-friendly, efficient, and safe sanitizing solution for your spa. Bacteria are killed 3,000 times faster than traditional chlorine or bromine. Ozonators will save you time and money. Ozone is the most powerful oxidizer and disinfectant that can be safely used in spas. More effective than chlorine, ozone creates no harmful by-products because it is a natural process, not a chemical.
Full Foam Insulation
While all of our spa shells are insulated with the highest grade of closed cell foam, some environments demand a little more. If you’re in an extremely cold climate, you can save energy and retain more heat with full foam insulation. This process fills the entire cabinet of the spa with insulation.
Cover
Our spa covers are made from 100% marine grade vinyl and a tapered angle downward from the center to drive off rain and prevent precipitation from pooling. Every cover also includes safety straps that employ a lock and key device to protect young children from unsupervised entry
Cover Valet
The Cover Valet is a dual gas spring system that will assist in effortlessly lifting and lowering your spa cover. A locking safety feature holds the cover open until it is time to close up shop.
Steps
Our synthetic spa steps are designed with style, safety and longevity in mind. These steps come in a variety of colors to match the cabinetry of your spa.
Spa Side Handrail
Probably the most user friendly spa side assistant on the market. This handrail is designed to provide 360° of movement to allow for easy entry and exit of your spa. The end of the rail is complimented by a battery powered blue LED light.
Chemical kit
You don’t have to be a mad scientist to keep your spa clean. We offer you this simple kit filled with the essentials. Our spa chemical kit has everything you need to keep the water clear at an affordable price.
Line Drawing
Color Options
Smoke
Mahogany
Mist
Snow White
Sand Bar
Baltic
Additional acrylic colors are avail for upgrade, see store for details.



