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Neptune Believe Tub

Believe 3666, 4266, 3672 & 4272

Designed for 2 with Center Drain and 2 Backrest.
Beautiful, ergonomic and comfortable, this Believe rectangular bathtub features harmonious angles and curves, with a large bathing well and built-in armrests for pure pleasure.


Neptune Believe Sale - Save on all Soaking, Whirlpool or Air Tubs

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Authorized Neptune Dealer


Choose Believe Drop-in or Freestanding Tub

Believe Drop-in
Rectangle Tub, Center Drain, Armrests with Tonic System
Whirlpool, Air Tub or Soaking Bathtub
Faucets not included with tub - no holes will be drilled by Neptune. Your installer can place faucets.


Choose Believe Drop-in Size:

3666 Believe - 66 x 36

PDF DownloadTechnical Sheet
Tub Size: 66 x 36 x 24
Water Capacity: 94 Gallons
Water Depth: 17.5

Bathtub Material: Acrylic
Standard Neptune Colors: White, Biscuit & Bone
Installation: Drop-in
Tub fitted with back jets may cause the pump to protrude by approximately 3" from overall dimension
Pump is located behind Right Side Seat
PDF DownloadProduits Neptune Owner's Manual

Call Now for Fantastic Sale Prices 866-380-0303 (email) | Neptune Retail Price Shown

Believe 3666 Drop-in Soaking, Whirlpool & Air Bathtubs

  • Soaking Tub
    BE3666
    Not Your Sale Price: $1270.00
  • Whirlpool
    BE3666T
    Not Your Sale Price: $3815.00

    6 Turbo jets
    10 Micro-rotating back jets
    2 diverter valves
    Electronic control
    13 A pump
    Believe Whirlpool Jet Location
  • Mass-air Tub
    Bottom Air Jets
    BE3666M
    Not Your Sale Price: $3985.00

    21 Mass-air injectors
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Mass-Air Jet Location
  • Activ-air Tub
    Side Air Jets
    BE3666A
    Not Your Sale Price: $4210.00

    48 Activ-air micro-jets
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Activ-Air Jet Location
  • Tonic
    Oxygenated Air Jets
    BE3666Q
    Not Your Sale Price: $8085.00

    8 Oxygen Jets
    1 ½ h.p. Optima blower with
    300W heating element
    Syllent pump with integrated in-line heater
    4 Chromatherapy Lights
    Electronic control
    Chrome Drain
    Neptune Tonic System Location in the Believe Bath

Believe 3666 Combination Tub

  • Mass-air & Whirlpool
    BE3666M
    Not Your Sale Price: $6460.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    11 Mass-air injectors
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Mass-Air/Whirlpool Jet Location
  • Active-air & Whirlpool
    BE3666CA
    Not Your Sale Price: $6685.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    36 Activ-air micro-jets
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Activ-Air/Whirlpool Jet Locations
  • Active-air & Mass-air
    BE3666CMA
    Not Your Sale Price: $6850.00

    48 Activ-air micro-jets
    11 Mass-air injectors
    2 - 1 ½ h.p. Optima blowers with
    300W heating element
    Believe Mass-Air/Activ-Air Jet Locations
  • Active-air, Mass-air & Whirlpool
    BE3666TAM
    Not Your Sale Price: $10445.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    36 Activ-air micro-jets
    11 Mass-air injectors
    2 - 1 ½ h.p. Optima blowers with
    300W heating element
    Electronic control
    Believe Mass-Air/Activ-Air/Whirlpool Jet Locations

Believe Options →

4266 Believe - 66 x 42

PDF DownloadTechnical Sheet
Tub Size: 66 x 42 x 24
Water Capacity: 116 Gallons
Water Depth: 17.5

Bathtub Material: Acrylic
Standard Neptune Colors: White, Biscuit & Bone
Installation: Drop-in
Tub fitted with back jets may cause the pump to protrude by approximately 3" from overall dimension
Pump is located behind Right Side Seat
PDF DownloadProduits Neptune Owner's Manual

Call Now for Fantastic Sale Prices 866-380-0303 (email) | Neptune Retail Price Shown

Believe 4266 Drop-in Soaking, Whirlpool & Air Bathtubs

  • Soaking Tub
    BE4266
    Not Your Sale Price: $1330.00
  • Whirlpool
    BE4266T
    Not Your Sale Price: $3870.00

    6 Turbo jets
    10 Micro-rotating back jets
    2 diverter valves
    13 A pump
    Electronic control
    Believe Whirlpool Jet Location
  • Mass-air Tub
    Bottom Air Jets
    BE4266M
    Not Your Sale Price: $4040.00

    21 Mass-air injectors
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Mass-Air Jet Location
  • Activ-air Tub
    Side Air Jets
    BE4266A
    Not Your Sale Price: $4260.00

    48 Activ-air micro-jets
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Activ-Air Jet Location
  • Tonic
    Oxygenated Air Jets
    BE4266Q
    Not Your Sale Price: $8145.00

    8 Oxygen Jets
    1 ½ h.p. Optima blower with
    300W heating element
    Syllent pump with integrated in-line heater
    4 Chromatherapy Lights
    Electronic control
    Chrome Drain
    Neptune Tonic System Location in the Believe Bath

Believe 4266 Combination Tub

  • Mass-air & Whirlpool
    BE4266C
    Not Your Sale Price: $6510.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    11 Mass-air injectors
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Mass-Air/Whirlpool Jet Location
  • Active-air & Whirlpool
    BE4266CA
    Not Your Sale Price: $6740.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    40 Activ-air micro-jets
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Activ-Air/Whirlpool Jet Locations
  • Active-air & Mass-air
    BE4266CMA
    Not Your Sale Price: $6910.00

    48 Activ-air micro-jets
    11 Mass-air injectors
    2 - 1 ½ h.p. Optima blowers with
    300W heating element
    Electronic control
    Believe Mass-Air/Activ-Air Jet Locations
  • Active-air, Mass-air & Whirlpool
    BE4266TAM
    Not Your Sale Price: $10560.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    40 Activ-air micro-jets
    11 Mass-air injectors
    2 - 1 ½ h.p. Optima blowers with
    300W heating element
    Electronic control
    Believe Mass-Air/Activ-Air/Whirlpool Jet Locations

Believe Options →

3672 Believe 72 x 36

PDF DownloadTechnical Sheet
Tub Size: 72 x 36 x 24
Water Capacity: 102 Gallons
Water Depth: 17.5

Bathtub Material: Acrylic
Standard Neptune Colors: White, Biscuit & Bone
Installation: Drop-in
Tub fitted with back jets may cause the pump to protrude by approximately 3" from overall dimension
Pump is located behind Right Side Seat
PDF DownloadProduits Neptune Owner's Manual

Call Now for Fantastic Sale Prices 866-380-0303 (email) | Neptune Retail Price Shown

Believe 3672 Drop-in Soaking, Whirlpool & Air Bathtubs

  • Soaking Tub
    BE3672
    Not Your Sale Price: $1330.00
  • Whirlpool
    BE3672T
    Not Your Sale Price: $3870.00
    6 Turbo jets
    10 Micro-rotating back jets
    2 diverter valves
    Electronic control
    13 A pump
    Believe Whirlpool Jet Location
  • Mass-air Tub
    Bottom Air Jets
    BE3672M
    Not Your Sale Price: $4040.00

    21 Mass-air injectors
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Mass-Air Jet Location
  • Activ-air Tub
    Side Air Jets
    BE3672A
    Not Your Sale Price: $4260.00

    52 Activ-air micro-jets
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Activ-Air Jet Location
  • Tonic
    Oxygenated Air Jets
    BE3672Q
    Not Your Sale Price: $8145.00
    8 Oxygen Jets
    1 ½ h.p. Optima blower with
    300W heating element
    Syllent pump with integrated in-line heater
    4 Chromatherapy Lights
    Electronic control
    Chrome Drain
    Neptune Tonic System Location in the Believe Bath

Believe 3672 Combination Tub

  • Mass-air & Whirlpool
    BE3672C
    Not Your Sale Price: $6510.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    11 Mass-air injectors
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Mass-Air/Whirlpool Jet Location
  • Active-air & Whirlpool
    BE3672CA
    Not Your Sale Price: $6740.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    40 Activ-air micro-jets
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Activ-Air/Whirlpool Jet Locations
  • Active-air & Mass-air
    BE3672CMA
    Not Your Sale Price: $6910.00

    52 Activ-air micro-jets
    11 Mass-air injectors
    2 - 1 ½ h.p. Optima blowers with
    300W heating element
    Electronic control
    Believe Mass-Air/Activ-Air Jet Locations
  • Active-air, Mass-air & Whirlpool
    BE3672TAM
    Not Your Sale Price: $10495.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    40 Activ-air micro-jets
    11 Mass-air injectors
    2 - 1 ½ h.p. Optima blowers with
    300W heating element
    Electronic control
    Believe Mass-Air/Activ-Air/Whirlpool Jet Locations

Believe Options →

4272 Believe - 72 x 42

PDF DownloadTechnical Sheet
Tub Size: 72 x 42 x 24
Water Capacity: 127 Gallons
Water Depth: 17.5

Bathtub Material: Acrylic
Standard Neptune Colors: White, Biscuit & Bone
Installation: Drop-in
Tub fitted with back jets may cause the pump to protrude by
approximately 3" from overall dimension
Pump is located behind Right Side Seat
PDF DownloadProduits Neptune Owner's Manual

Call Now for Fantastic Sale Prices 866-380-0303 (email) | Neptune Retail Price Shown

Believe 4272 Drop-in Soaking, Whirlpool & Air Bathtub

  • Soaking Tub
    BE4272
    Not Your Sale Price: $1385.00
  • Whirlpool
    BE4272T
    Not Your Sale Price: $3925.00

    6 Turbo jets
    10 Micro-rotating back jets
    2 diverter valves
    Electronic control
    13 A pump
    Believe Whirlpool Jet Location
  • Mass-air
    Bottom Air Jets
    BE4272M
    Not Your Sale Price: $4095.00

    21 Mass-air injectors
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Mass-Air Jet Location
  • Activ-air Tub
    Side Air Jets
    BE4272A
    Not Your Sale Price: $4325.00

    52 Activ-air micro-jets
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Activ-Air Jet Location
  • Tonic
    Oxygenated Air Jets
    BE4272Q
    Not Your Sale Price: $8200.00

    8 Oxygen Jets
    1 ½ h.p. Optima blower with
    300W heating element
    Syllent pump with integrated in-line heater
    4 Chromatherapy Lights
    Electronic control
    Chrome Drain
    Neptune Tonic System Location in the Believe Bath

Believe 4272 Combination Tub

  • Mass-air & Whirlpool
    BE4272C
    Not Your Sale Price: $6570.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    11 Mass-air injectors
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Mass-Air/Whirlpool Jet Location
  • Active-air & Whirlpool
    BE4272CA
    Not Your Sale Price: $6685.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    44 Activ-air micro-jets
    1 ½ h.p. Optima blower with
    300W heating element
    Electronic control
    Believe Activ-Air/Whirlpool Jet Locations
  • Active-air & Mass-air
    BE4272CMA
    Not Your Sale Price: $6965.00

    52 Activ-air micro-jets
    11 Mass-air injectors
    2 - 1 ½ h.p. Optima blowers with
    300W heating element
    Electronic control
    Believe Mass-Air/Activ-Air Jet Locations
  • Active-air, Mass-air & Whirlpool
    BE4272TAM
    Not Your Sale Price: $10665.00

    6 Turbo jets
    10 Micro-rotating back jets
    13 A pump and 2 diverter valves
    46 Activ-air micro-jets
    11 Mass-air injectors
    2 - 1 ½ h.p. Optima blowers with
    300W heating element
    Electronic control
    Believe Mass-Air/Activ-Air/Whirlpool Jet Locations

Believe Options
Model Specific Options:
Tile Flange
Handle (1- Centered Opposite Overflow) - White, Bone, Biscuit or Chrome
Black Neck Pillow (not available with Rayola)
All Neptune Options and Features →


Choose the Perfect Faucet to Compliment your Neptune Bath Tub: Tub Faucets →


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