Skip to product information
“Biarritz S73LA Hydro Spa Jetted” 73 Inch Light Aged Copper Shell French Bateau Bathtub with CoreAcryl Acrylic Interior

“Biarritz S73LA Hydro Spa Jetted” 73 Inch Light Aged Copper Shell French Bateau Bathtub with CoreAcryl Acrylic Interior

For scale, mannequin inside the tub is 5'8" tall
Warranty: 10 years tub shell, 5 years water and air jet system components, 12 months labor

Engineered to combine luxury, strength, and spa performance. The Biarritz S73LA features a hand-finished lightly aged 14-gauge solid copper shell with a living finish that will continue to patina gracefully over time, adding character and individuality to every tub.

Inside, the bath is constructed from 3/4" thick CoreAcryl™ white acrylic, designed for durability, easy care, and a brilliantly smooth surface. At 73 inches, this model delivers expansive reclining comfort and full luxury-scale hydrotherapy.

Hydro-Spa System Features

  • Super-quiet 1.25hp water pump

  • 10 water jets total: 4 directional back jets, 2 directional foot jets, and 4 side jets with both direction and speed control

  • Side jet flanges can be adjusted to reduce side output and redirect extra power to the back and foot jets

  • In-line water heater to help maintain bathing temperature

  • Ozone sanitizing system for improved water clarity and hygiene

  • Super-quiet 0.5hp air blower with variable-speed warmed air

  • 12 air jets with backflow prevention on the tub floor for soothing bubbles

  • Chromotherapy LED underwater light with 7 color options

  • Waterproof remote control for convenient operation

Design & Build

  • Integrated drain and overflow in your choice of finish

  • All jetted fittings supplied in white to match the tub interior

  • All fittings and components are housed between the inner and outer shell – no exposed hardware

  • Requires two standard 110V, 15-amp GFCI connections

Certifications & Standards

  • Meets or exceeds ASME A112.19.7 / CSA B45.10

  • All electrical components UL listed

  • MA Code accepted

SanSiro Biarritz S73LA 73 Inch Hydro-Spa Jetted Lightly Aged Copper Shell French Bateau Bathtub with 3/4" Thick CoreAcryl Acrylic Interior
Built to order in the USA

  • Water Jetting
    Direction control on four back and two foot jets, variable speed and direction control on four side jets.
  • Jet Pressure Control
  • Higher pressure on the back and foot jets can be achieved by turning the flange on the variable speed side jets and lowering their output.
  • In-Line Heater
    The water jetting includes an in-line water heater that will maintain and even slightly increase the water temperature during jetting. The heater works automatically when the water runs through it.
  • Air Jetting
    The air blower is fitted with variable speed control for total enjoyment. The twelve individual air injectors in the floor will bubble up around your legs, soothingly caressing your skin as they rise. Activating the air blower for about a minute before entering the tub can be a good idea for heating up the bubbles. While the air is warmed, it can still feel slightly cool when the bubbles first touch the skin. The sensation still feels fabulous. For additional hygiene, the air system has an automatic purge cycle that runs for 2 minutes - 20 minutes after being deactivated. This cleans and dries out the air lines.
  • Chromotherapy
    For additional bathing relaxation, the system includes a seven color choice, mood enhancing chromotherapy underwater light.
  • Ozone Sanitizing
    Ozone sanitizing is included with the hydro-spa jetting system. While the jetting tubes will drain very effectively, a little residual moisture retention is unavoidable. The ozone system, which only activates when the tub is jetting, will prevent bacteria build up. However, the regular maintenance suggested herein is a necessity for fully effective hygiene.
  • Fittings Position
    The double shell tub design makes it possible to maintain the original bathtub appearance with no visible or remote jetting parts. All of the fittings are contained within the cavity in between the shells.
  • Bath Salts and Bubble Bath
    It is safe to use bath salts and bubble bath. However, make sure the salts are dissolved before entering the bath or they can scratch the tub surface.
  • Care and Maintenance
    Cleaning the high gloss acrylic finish requires a wipe down with a soft cloth and some very gentle liquid soap without abrasives. The living finish lightly aged copper exterior will continue to patina over time, unwanted marks can be removed using a soft damp cloth, a car polish or Mothers polish.
  • Recommended Periodic Maintenance
  • To maintain excellent hygiene, we recommend the following preventative maintenance be carried out each 3-4 months.
  • Fill you tub with lukewarm water to 2" above the top jet.
  • Add one cup of household bleach.
  • Activate all the jets in the fully open position.
  • Allow the jets to run for 15 minutes.
  • Switch the jets off and allow the water to sit for 15 minutes.
  • Empty the tub and lightly rinse inside.