Glamor shot of a LSX 850 Glamor shot of a LSX 850

Michael Phelps Legend SeriesLSX 850

The all-new LSX 850 combines the luxury of the Legend Series with an open seating arrangement. Featuring 59 jets and premium therapy seats, up to seven adults can enjoy the ultimate in relaxation and rejuvenation.

Dimensions 94" x 94" x 38" (239 cm x 239 cm x 97 cm)
Gallons 460 (1,741 L)
Jets 59  
Seating 7  
LSX 850 downshot

Michael Phelps Legend Series
LSX 850

Dimensions 94" x 94" x 38" (239 cm x 239 cm x 97 cm)
Weight (Dry/Full) 1,300 lbs (590 kg) / 6,565 lbs (2,978 kg)
Gallons 460 (1,741 L)
Power Requirement 240 V / 50 Amp
Seating Capacity 7
Stainless Steel Jets Jets 59 (2 Master Blasters ®)
Pumps 3
Water Features 3
Filtration EcoPur® Charge
LED Lighting Orion Light System™
Exclusive Features StressRelief Neck and Shoulder Seat™
Master Force™ Bio-Magnetic Therapy System
Vac-Formed ABS Pan Bottom
Secondary Remote
Premium Options QuietFlo Water Care System™
Mast3rPur™ Water Management System
Fusion Air Sound System
Wi-Fi Module
Afterglow Jet Package
Dream Lighting
Listing Number 9923

Highlight Video

This spacious six-person hot tub has premium features, beautiful styling, and outstanding performance. Take advantage of the 70 hydrotherapy jets and realize the benefits of soaking in a hot tub.

StressRelief Neck & Shoulder Seat

Relieve unwanted tension and pain in your neck and shoulders. The unique out-of-water jets of the StressRelief Neck and Shoulder Seat targets this high-tension area.
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Master Blaster Foot Therapy

Soothe tired, achy feet with the Master Blaster Foot Therapy. Jet clusters, each with 14 individual nozzles, offer a relaxing foot massage.
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ABS Pan Bottom

The ABS Pan Bottom comes standard on all Michael Phelps Legend hot tubs. It offers a protective barrier between your spa and the foundation.

Bio-Magnetic Therapy System

Relieve inflammation, improve circulation, and boost nervous system responses. The Master Force Bio-Magnetic Therapy System targets pressure points on the neck and back with strategically placed magnets.
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Orion Light System

With the of a touch of a button, the Orion Light System allows you to illuminate the topside controls, water features, under the water, and more.

EcoPur Filtration

The clean, clear water you want without the harsh chemicals you don’t. EcoPur Charge uses minerals like copper and zinc to purify water and remove dirt, bacteria, and algae.
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Energy Efficient

Quality construction and energy-efficient materials help keep energy costs low. The full-foam insulation and a snug-fitting cover work together to maintain water temperature.
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Ozone System

The Ozone System releases a super fine mist that works with your sanitizer to kill bacteria and other organics. Your hot tub will require less maintenance and chemicals.
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Afterglow Light Package

Afterglow Light Package

This optional package adds some drama to your spa with a kaleidoscope of colors through the jets.

Dream Lighting

Beautiful soft streams of light accent the exterior corners of your hot tub. Not available with DreamStone Skirting.

fusion air sound system speaker

Fusion Air Sound System

Stream your favorite station or playlist via Bluetooth®. The hot tub stereo includes up to four interior, water-resistant speakers, and a subwoofer to maximize sound quality.
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Control your spa with a wifi module

Wifi Module

Control your hot tub from the convenience of your phone. Set the water temperature, turn on the light, run the massage pumps, and more.

QuietFlo Water Care System

Maximize efficiency, while keeping water filtered and heated evenly. The QuietFlo Water Care System utilizes a circulation pump to move water at preset intervals.
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Mast3rPur

The Mast3rPur™ Water Management System reduces the amount of chemicals, like chlorine, that you need to use and keeps your spa water clean naturally.
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  • 10 YEARS - Spa Structure
  • 7 YEARS - Shell Surface
  • 5 YEARS - Equipment
  • 5 YEARS - Plumbing
  • 5 YEARS - Jets
  • 5 YEARS - Skirting: Dreamstone™
  • Lifetime - Skirting: Duramaster Polymer™

See complete warranty for details.

Estimated Monthly Operation Cost

$24.05


Three quarter view of a legend series hot tub

Colors Available:

SHELL: Sterling Silver (Standard)

SKIRTING: DuraMaster Espresso (Standard)

hot tub installation on a back patio hot tub installation on a back patio

See what our customers are saying

Variety of Options

"We love the tub with all the different jets and variety of positions. Also enjoy the different built in lights and variety of colors. We get in ours about 4-6 times a week!" - CDB, North Carolina


At Master Spas, we make buying a hot tub or swim spa just as relaxing as using one.

Visit our showroom through a video chat
See a hot tub or swim spa, select the perfect size.
A professional will evaluate your space
We can do this with a photo & dimensions or by visiting your backyard.
Schedule a day for installation
When you're ready, a hot tub or swim spa can be installed in one day.

Michael Phelps Legend Series LSX 850 Reviews